Produced Water

SECTION 2: Hazards identification

NFPA Rating * * *

2.1 Classification of the substance or mixture

Eye Irritant — Category 2A. Flammable Liquids — Category 2. Acute Toxicity Inhalation — Category 3 Germ Cell Mutagenicity — Category 1B Carcinogenicity — Category 1A Specific Target Organ Systemic Toxicity (STOT) — Single Exposure Category 3 Specific Target Organ Systemic Toxicity (STOT) — Repeat Exposure Category 1 Aspiration Toxicity — Category 1 Toxic to the Aquatic Environment Acute — Category 3

Signal word

Warning Danger Page 1 of 17

Hazard statements

Causes serious eye irritation Highly flammable liquid and vapor. Toxic if inhaled. May cause genetic defects. May cause cancer. May cause respiratory irritation. May cause drowsiness or dizziness. May cause damage to organs (liver, kidneys, blood, nervous system, and skin) through prolonged or repeated exposure. May be fatal if swallowed and enters airways. Harmful to aquatic life.

Prevention

Wear protective gloves/protective clothing/eye protection/face protection. Keep away from heat/sparks/open flames/hot surfaces. No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Wear protective gloves/protective clothing/eye protection/face protection. Do not breathe gas/mist/vapors/spray. Do not handle until all safety precautions have been read and understood. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Avoid release to the environment.

Response

If on SKIN (or hair): Rinse skin with water / shower. Remove / Take off all contaminated clothing immediately. Page 1 of 11 If in EYES: Rinse cautiously with water for at least fifteen (15) minutes. Remove Contact Lenses, if present and easy to do. Continue rinsing. If EYE irritation persists, get medical advice / attention. If on SKIN (or hair): Wash with plenty of soap and water. Remove / Take off all contaminated clothing immediately. Rinse skin with water/shower. If INHALED: Remove victim to fresh air and keep comfortable for breathing. Calla poison center/doctor if the victim feels unwell. lf SWALLOWED: Immediately call a poison center or doctor / physician. Do not Induce vomiting. If exposed or concerned: Get medical advice/attention. In case of fire: Use water spray, fog or fire-fighting foam.

Storage

Store in a secure area. Procedures Keep container(s) tightly closed and properly labeled. Use and store this material in cool, dry, well ventilated areas. Store only in approved containers. Keep away from any incompatible material (see Section 10). Protect container(s) against physical damage. Incompatibilities Keep away from excessive heat to prevent rupture of container. *** Section 8— EXPOSURE CONTROLS / PERSONAL PROTECTION * * * Component Exposure Limits Water (7732-18-5) ACGIH: Not listed Sodium Chloride (7647-14-5) ACGIH: Not listed Engineering Measures If current ventilation practices are not adequate to maintain airborne concentrations below the established exposure limits, additional engineering controls may be required. Personal Protective Equipment: Respiratory Emergencies or conditions that could result in significant airborne exposures may require the use of NIOSH approved respiratory protection. An industrial hygienist or other appropriate health and safety professional should be consulted for specific guidance under these situations. A respiratory protection program that meets or is equivalent to OSHA 29 CFR Page 5 of 11 1910.134 and ANSI 288.2 should be followed whenever workplace conditions warrant a respirator's use. Personal Protective Equipment: Skin and Hands The use of skin protection is not normally required; however, good industrial hygiene practice suggests the use of gloves or other appropriate skin protection whenever working with chemicals. Personal Protective Equipment: Eyes Safety glasses or goggles that meet or exceed ANSI Z-87.1 are recommended where there is a possibility of splashing or spraying. Hygiene Measures Emergency eye wash capability should be available in the near proximity to operations presenting a potential solash exposure. Use good personal hygiene practices. Avoid repeated and/or prolonged skin exposure. Wash hands before eating, drinking, smoking, or using toilet facilities. Promptly remove contaminated clothing and launder before reuse. ** * Section 9-— PHYSICAL AND CHEMICAL PROPERTIES * * * Hygroscopic. Keep container tightly closed. Keep container in a cool, well-ventilated area. Do not store above 30°C (86°F). Section 8: Exposure Controls/Personal Protection Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit. Personal Protection: Safety glasses. Synthetic apron. Gloves (impervious). Personal Protection in Case of a Large Spill: Splash goggles. Full suit. Boots. Gloves. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this product. Exposure Limits: Not available. Section 9: Physical and Chemical Properties Physical state and appearance: Solid. (Crystalline solid.) Odor: Odorless. Taste: Saline. Molecular Weight: 110.99 g/mole Color: Colorless. White. Off-white. pH (1% soln/water): 9 [Basic.] Boiling Point: 1670°C (3038°F) Melting Point: 772°C (1421.6°F) Critical Temperature: Not available. Specific Gravity: 2.15 (Water = 1) Vapor Pressure: Not applicable. Vapor Density: Not available. Volatility: Not available. Odor Threshold: Not available. Water/Oil Dist. Coeff.: Not available. lonicity (in Water): Not available. Dispersion Properties: See solubility in water, acetone. Solubility: Easily soluble in cold water, hot water, acetone. Freely soluble in alcohol. Soluble in Acetic Acid. Section 10: Stability and Reactivity Data p. 3 Stability: The product is stable. Instability Temperature: Not available. Conditions of Instability: Incompatible materials, moisture. Incompatibility with various substances: Reactive with moisture. Corrosivity: Non-corrosive in presence of glass. Special Remarks on Reactivity: Hygroscopic. Reacts violently (violent boiling) with water, generating heat. Forms flammable gases and evolves hydrogen when reacted with zinc. Solutions attack some metals. Generates heat and violent polymerization occurs when mixed with methyl vinyl ether. Bromine trifluoride reacts violently with and attacks calcium chloride. Special Remarks on Corrosivity: Not available. Polymerization: Will not occur. Store in a well-ventilated place. Keep cool. Store in a secure area. Page 2 of 17

Disposal

Dispose of contents/containers in accordance with regulations. ** * Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS * * * CAS # Component Percent 7732-18-5 Water 80 7647-14-5 Sodium Chloride 20 Because brine water is a natural product, composition can vary greatly. ** * Section 4 — FIRST AID MEASURES * * * First Aid: Eyes Flush eyes with clean running water for at least fifteen (15) minutes. If irritation or redness develops from exposure, following flushing, seek medical attention. First Aid: Skin First aid is not required, normally. However, it is a good practice to wash any chemical from the skin. First Aid: Ingestion (Swallowing) First aid is not required, normally. If soontaneous vomiting occurs, lean the victim forward to reduce the risk of aspiration. Monitor for breathing difficulties. If symptoms develop, seek medical attention. First Aid: Inhalation (Breathing) Remove person to fresh air. If person is not breathing, provide artificial respiration. If necessary, provide additional oxygen once breathing is restored if trained to do so. Seek medical attention immediately. Page 2 of 11 Most important symptoms and effects None known or anticipated. *** Section 5 — FIRE FIGHTING MEASURES * * * Considerations p. 4 Waste Disposal: Waste must be disposed of in accordance with federal, state and local environmental control regulations. Section 14: Transport Information DOT Classification: Not a DOT controlled material (United States). Identification: Not applicable. Special Provisions for Transport: Not applicable. Section 15: Other Regulatory Information Federal and State Regulations TSCA 8(b) inventory Calcium chloride, Anhydrous Other Regulations EINECS This product is on the European Inventory of Existing Commercial Chemical Substances Other Classifications: WHMIS (Canada) CLASS D-2B Material causing other toxic effects (TOXIC) DSCL (EEC): R36- Irritating to eyes. S2- Keep out of the reach of children. S22- Do not breathe dust. S24- Avoid contact with skin. HMIS (U.S.A.): Considerations Do not attempt to dispose of residual waste or unused quantities. Return in the shipping container PROPERLY LABELED, WITH ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP IN PLACE to BOC Gases or authorized distributor for proper disposal. 14. Transport Information PARAMETER United States DOT Canada TDG PROPER SHIPPING NAME: Carbon Dioxide Dispose of contents/containers in accordance with local/regional/national/international regulations.

NFPA Ratings

Health: 1 Flammability: 0 Instability: 0 (0=Minimal, 1=Slight, 2=Moderate, 3=Serious, 4=Severe) General Fire Hazards No fire hazards are expected. General Fire Hazards No unusual fire or explosion hazards are expected. If container is not properly cooled, it can rupture in the heat of a fire. Extinguishing Media The material is non-flammable. Use extinguishing agent suitable for the type of surrounding fire. Unsuitable Extinguishing Media None Fire Fighting Equipment / Instructions Small fires in the beginning stage may typically be extinguished using handheld portable fire extinguishers and other firefighting equipment. Isolate area around container involved in fire and keep unauthorized personnel out. Stop spill/release if it can be done safely. Move undamaged containers from the immediate hazard area if it can be done safely. Cool equipment exposed to fire with water, if it can be done safely. Hazardous Combustion Products None Anticipated. See Section 9 for Flammable Properties including Flash Point and Flammable (Explosive) Limits Page 3 of 11 *** Section 6 - ACCIDENTAL RELEASE MEASURES * * * Recovery and Neutralization Contain and stop the source of the spill, if safe to do so. Materials and Methods for Clean-Up Notify relevant authorities in accordance with all applicable regulations. Immediate cleanup of any spill is recommended. Dike far ahead of spill for later recovery or disposal. Absorb spill with inert material such as sand or vermiculite, and place in suitable container for disposal. If spilled on water remove with appropriate methods (e.g. skimming, booms or absorbents). In case of soil contamination, remove contaminated soil for remediation or disposal, in accordance with local regulations. Recommended measures are based on the most likely spillage scenarios of this material. However, local conditions and regulations may influence or limit the choice of appropriate actions to be taken. See Section 13 for information on appropriate disposal. Emergency Measures The material is not considered hazardous. Nevertheless, evacuate nonessential personnel and secure the area. Stay upwind and uphill, if possible. Personal Precautions and Protective Equipment Stay upwind and away from the spill/release. Avoid direct contact with the material. For large spillages, notify persons downstream of the spill/release. Isolate the immediate hazard area and keep unauthorized personnel out. Response and clean-up crews must be properly trained and must utilize proper protective equipment (see Section 8). Environmental Precautions Protect bodies of water by diking or absorbents, if possible. Do not flush down sewer or drainage systems. Use water sparingly to minimize environmental contamination and reduce disposal requirements. If a spill occurs on water, notify appropriate authorities and advise shipping of any hazard. Prevention of Secondary Hazards None Page 4 of 11 *** Section 7— HANDLING AND STORAGE * * * Handling Procedures Wash thoroughly after handling. Use good personal hygiene practices and wear appropriate personal protective equipment (see section 8). Do not enter confined spaces such as tanks or pits without following proper entry procedures such as ASTM D-4276 and 29 CFR 1910.146. Do not wear contaminated clothing or shoes.

Appearance/Odor

Clear to Brown Salty Physical State: Liquid pH: ND Vapor Pressure: < 0.36 psia @ 70°F / Vapor Density: > 1 21.1°C Boiling Point: 212°F / 100°C Melting Point: 2.4°F / -16.5°C Solubility (H2O): Complete Specific Gravity: 1.1 @ 68°F / 20°C Evaporation Rate: Variable voc: ND Octanol / H20 ND Flash Point: ND Coeft.: Flash Point ND Method: Lower Flammability ND Upper Flammability Limit: ND Limit: (LFL): (UFL): Auto Ignition: ND Burning Rate: ND Page 6 of 11 ** * Section 10 — CHEMICAL STABILITY & REACTIVITY INFORMATION * * * Chemical Stability This is a stable material. Hazardous Reaction Potential Will react with alkali and alkaline metals to form flammable hydrogen gas. Conditions to Avoid Avoid contact with alkali metals (lithium, sodium, potassium), alkaline metals (beryllium, magnesium, calcium, strontium, and barium), and metallic hydrides like lithium aluminum hydride. Hazardous Decomposition Products Not anticipated under normal conditions of use. Hazardous Polymerization Not known to occur. : Acolorless, odorless gas. 10. Stability and Reactivity STABILITY: Stable INCOMPATIBLE MATERIALS: Certain reactive metals, hydrides, moist cesium monoxide, or lithium acetylene carbide diammino may ignite. Passing carbon dioxide over a mixture of sodium peroxide and aluminum or magnesium may explode. HAZARDOUS DECOMPOSITION PRODUCTS: Carbon monoxide and oxygen when heated above 3092 °F (1700°C). Carbonic acid is formed in the presence of moisture. HAZARDOUS POLYMERIZATION: Will not occur.

TOXICOLOGICAL INFORMATION

Acute Toxicity A: General Product Information Unlikely to be harmful. B. Component Analysis — D50/LC50 Water (7732-18-5) Oral LD50 Rat 90 g/kg Sodium Chloride (7647-14-5) Oral LD50 Rat 3 g/kg REPRODUCTIVE: Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and experimental animals. Exposure of female rats to 60,000 ppm carbon dioxide for 24 hours has produced toxic effects to the embryo and fetus in pregnant rats. Toxic effects to the reproductive system have been observed in other mammalian species at similar concentrations. OTHER: MSDS: G-8 Revised: 6/7/96 Page 5 of 7 PRODUCT NAME: CARBON DIOXIDE, GAS Carbon dioxide is the most powerful cerebral vasodilator known. Inhaling large concentrations causes rapid circulatory insufficiency leading to coma and death. Chronic, harmful effects are not known from repeated inhalation of low (3 to 5 molar %) concentrations. Toxicity Data for CAUSTIC SODA SOLUTION (50%) Toxicity Data for Sodium hydroxide Acute oral toxicity LDS0: 140 - 340 mg/kg (Rat) Acute dermal toxicity LDS0: 1,350 mg/kg (rabbit) Skin irritation Human, Corrosive Eye irritation Human, severe irritant Sensitisation Skin sensitisation negative (Human experience, Patch Test) Mutagenicity Genetic Toxicity in Vitro: Ames: negative (Salmonella typhimurium) Positive and negative results were seen in various in vitro studies. Genetic Toxicity in Vivo: Micronucleus Assay: (mouse, Male/Female, intraperitoneal) negative

Potential health effects

Skin Corrosion Property / Stimulativeness May cause skin irritation with prolonged or repeated contact. Not expected to be a skin sensitizer. Eye Critical Damage / Stimulativeness Contact with eyes may cause moderate irritation. Page 7 of 11 Ingestion Ingestion may result in nausea, vomiting, diarrhea, abdominal cramps, and dehydration (thirst). Inhalation No information available on the mixture. However, none of the components have been classified for respiratory sensitization (or are below the concentration threshold for classification). Generative Cell Mutagenicity Not expected to cause genetic effects. Carcinogenicity General Product Information Not expected to cause cancer. This substance is not listed as a carcinogen by IARC, NTP or OSHA. Reproductive Toxicity This product is not reported to have any reproductive toxicity effects. Specified Target Organ General Toxicity: Single Exposure This product is not reported to have any specific target organ general toxicity single exposure effects. Specified Target Organ General Toxicity: Repeated Exposure This product is not reported to have any specific target organ general toxicity multiple exposure effects. Aspiration Respiratory Organs Hazard The major health threat of ingestion occurs from the danger of aspiration (breathing) of liquid drops into the lungs, particularly from vomiting. Aspiration may result in chemical pneumonia (fluid in the lungs), severe lung damage, respiratory failure and even death. effects may be delayed Exposure Limits Irritant Sensitization Yes No Teratogen Reproductive Hazard Mutagen No Synergistic Effects None reported Carcinogenicity -- NTP No IARC: No OSHA: No EYE EFFECTS: No adverse effects anticipated. SKIN EFFECTS: No adverse effects anticipated. INGESTION EFFECTS: No adverse effects anticipated. INHALATION EFFECTS: Carbon dioxide is the most powerful cerebral vasodilator known. Inhaling large concentrations causes rapid circulatory insufficiency leading to coma and death. Asphyxiation is likely to occur before the effects of carbon dioxide overexposure. Chronic, harmful effects are not known from repeated inhalation of low concentrations. Low concentrations of carbon dioxide cause increased respiration and headache. Effects of oxygen deficiency resulting from simple asphyxiants may include: rapid breathing, diminished mental alertness, impaired muscular coordination, faulty judgement, depression of all sensations, emotional instability, and fatigue. As asphyxiation progresses, nausea, vomiting, prostration, and loss of consciousness may result, eventually leading to convulsions, coma, and death. Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and experimental animals. NFPA HAZARD CODES HMIS HAZARD CODES RATINGS SYSTEM Health: 1 Health: 1 0 = No Hazard Flammability: 0 Flammability: 0 1 = Slight Hazard Reactivity: 0 Reactivity: 0 2 = Moderate Hazard 3 = Serious Hazard 4 = Severe Hazard MSDS: G-8 Updated: 6/7/96 Page 2 of 7 | PRODUCT NAME: CARBON DIOXIDE, GAS 4. First Aid Measures EYES: Never introduce oil or ointment into the eyes without medical advice! If pain is present, refer the victim to an ophthalmologist for further treatment and follow up. SKIN: No adverse effects anticipated. INGESTION: Not anticipated. INHALATION: PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF OVEREXPOSURE TO CARBON DIOXIDE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED BREATHING APPARATUS. Conscious persons should be assisted to an uncontaminated area and inhale fresh air. Quick removal from the contaminated area is most important. Unconscious persons should be moved to an uncontaminated area, given mouth-to-mouth resuscitation and supplemental oxygen. Further treatment should be symptomatic and supportive. 5. Fire Fighting Measures Conditions of Flammability: Nonflammable Flash point: Method: Autoignition None Not Applicable Temperature: None LEL(%): None | UEL(%): None Hazardous combustion products: None Sensitivity to mechanical shock: None Sensitivity to static discharge: None FIRE AND EXPLOSION HAZARDS: None. Nonflammable 6. Accidental Release Measures Evacuate all personnel from affected area. Use appropriate protective equipment. If leak is in user’s equipment, be certain to purge piping with inert gas prior to attempting repairs. If leak is in container or container valve, contact the appropriate emergency telephone number listed in Section 1 or call your closest BOC location. 7. Handling and Storage Electrical Classification: Non-Hazardous MSDS: G-8 Revised: 6/7/96 Page 3 of 7 PRODUCT NAME: CARBON DIOXIDE, GAS Dry carbon dioxide can be handled in most common structural materials. Moist carbon dioxide is generally corrosive by its formation of carbonic acid. For applications with moist Carbon Dioxide, 316, 309 and 310 stainless steels may be used as well as Hastelloy ® A, B, & C, and Monel ®. Ferrous Nickel alloys are slightly susceptible to corrosion. At normal temperatures carbon dioxide is compatible with most plastics and elastomers. Use only in well-ventilated areas. Carbon dioxide vapor is heavier than air and will accumulate in low areas. Valve protection caps must remain in place unless container is secured with valve outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand truck for cylinder movement. Use a pressure reducing regulator when connecting cylinder to lower pressure (<3000 psig) piping or systems. Do not heat cylinder by any means to increase the discharge rate of product from the cylinder. Use a check valve or trap in the discharge line to prevent hazardous back flow into the system. Protect cylinders from physical damage. Store in cool, dry, well-ventilated area away from heavily trafficked areas and emergency exits. Do not allow the temperature where cylinders are stored to exceed 125°F (52°C). Cylinders should be stored upright and firmly secured to prevent falling or being knocked over. Full and empty cylinders should be segregated. Use a "first in-first out" inventory system to prevent full cylinders being stored for excessive periods of time. For additional storage recommendations, consult Compressed Gas Association’s Pamphlet P-1. Never carry a compressed gas cylinder or a container of a gas in cryogenic liquid form in an enclosed space such as a car trunk, van or station wagon. A leak can result in a fire, explosion, asphyxiation or a toxic exposure. Maximum use for potable water 100 mg/I. 8. Exposure Controls, Personal Protection EXPOSURE LIMITS!: INGREDIENT % VOLUME PEL-OSHA* TLV-ACGIH” LDso or LCs Route/Species Carbon Dioxide 99.8 TO 99.999 | 5000 ppm TWA 5000 ppm TWA Not Available FORMULA: CO. 30,000 ppm STEL CAS: 124-38-9 RTECS #: FF6400000 ' Refer to individual state of provincial regulations, as applicable, for limits which may be more stringent than those listed here. > As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993) > As stated in the ACGIH 1994-1995 Threshold Limit Values for Chemical Substances and Physical Agents. IDLH (Carbon Dioxide): 50,000 ppm ENGINEERING CONTROLS: Use local exhaust to prevent accumulation of high concentrations so as to reduce the oxygen level in the air to less than 19.5% and the carbon dioxide concentration below the exposure limit. EYE/FACE PROTECTION: Safety goggles or glasses as appropriate for the job. SKIN PROTECTION: Protective gloves of any material appropriate for the job. RESPIRATORY PROTECTION: MSDS: G-8 Revised: 6/7/96 Page 4 of 7 PRODUCT NAME: CARBON DIOXIDE, GAS Positive pressure air line with full-face mask and escape bottle or self-contained breathing apparatus should be available for emergency use. OTHER/GENERAL PROTECTION: Safety shoes. 9. Physical and Chemical Properties PARAMETER VALUE UNITS Physical state (gas, liquid, solid) : Gas Vapor pressure at 70 °F 856 psia Vapor density at 70 °F, 1 atm (Air = 1) 1.53 Evaporation point : Not Available Boiling point (CO2 Sublimes) : -109.3 °F -78.5 °C Freezing point : -69.8 °F : -56.6 °C pH : Not Available Specific gravity : Not Available Oil/water partition coefficient : Not Available Solubility (H20) : Very soluble Odor threshold : Not Applicable

ECOLOGICAL INFORMATION

Ecotoxicity A: General Product Information Keep out of sewers, drainage areas, and waterways. Report spills and releases, as applicable under Federal and State regulations. Page 8 of 11 Persistence / Degradability No information available Bioaccumulation No information available Mobility in Soil No information available *** Section 13 — DISPOSAL CONSIDERATIONS * * * Waste Disposal Instructions See Section 7 for Handling Procedures. See Section 8 for Personal Protective Equipment Recommendations. Disposal of Contaminated Containers or Packaging Recover or recycle if possible. It is the responsibility of the generator to determine the toxicity and physical properties of the material generated so as to properly classify the waste and ensure disposal methods comply with applicable regulations. This material, if discarded as produced, is not a RCRA "listed" hazardous waste, and is not believed to exhibit characteristics of hazardous waste. Consult state and local regulations regarding the proper disposal of this material. Do not dispose of brine water by draining onto the ground. This will result in soil and groundwater contamination. Waste arising from spillage or tank cleaning should be disposed of in accordance with applicable regulations. Container contents should be completely used and containers should be emptied prior to discard. Container rinsate should not be considered a RCRA hazardous waste but must be disposed of with care and in full compliance with federal, state and local regulations. Larger empty containers, such as drums, should be returned to the distributor or to a qualified drum reconditioner. To assure proper disposal of smaller empty containers, consult with state and local regulations and disposal authorities. *** Section 14— TRANSPORTATION INFORMATION * * * DOT Information Shipping Description: Not Regulated UN #: Not Regulated Page 9 of 11 *** Section 15 — REGULATORY INFORMATION * * * CERCLA/SARA - Section 302 Extremely Hazardous Substances and TPQs (in pounds): This material does not contain any chemicals subject to the reporting requirements of SARA 302 and 40 CFR 372, CERCLA/SARA - Section 313 and 40 CFR 372): This material does not contain any chemicals subject to the reporting requirements of SARA 313 and 40 CFR 372. EPA (CERCLA) Reportable Quantity (in pounds): This material does not contain any chemicals with CERCLA Reportable Quantities. State Regulations Component Analysis The following components appear on one or more of the following state hazardous substances list. California Proposition 65: This material does not contain any chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm at concentrations that trigger the warning requirements of California Proposition 65. National Chemical Inventories: All components are either listed on the US TSCA Inventory, or are not regulated under TSCA. U.S. Export control classification Number: EAR9Q9. Ecotoxicity Ecotoxicity in water (LC50) 100 mg/I 96 hours [Fish] BOD5 and COD: Not available. Products of Biodegradation: Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise. Toxicity of the Products of Biodegradation: The products of degradation are less toxic than the product itself. Special Remarks on the Products of Biodegradation: Not available. No data given. Ecological Data for CAUSTIC SODA SOLUTION (50%) Ecological Data for Sodium hydroxide Acute and Prolonged Toxicity to Fish LCS0: 45.4 mg/L (50 %, pH 8) (Rainbow (Donaldson)Trout (Oncorhynchus mykiss), 96 h) Acute Toxicity to Aquatic Invertebrates LC100: 156 mg/L (pH 9.1 - 9.5) (Water flea (Daphnia magna)) Toxicity to Aquatic Plants The freshwater algae are destroyed at a pH of >8.5. 13. Disposal considerations Waste Disposal Method Waste disposal should be in accordance with existing federal, state and local environmental control laws. Empty Container Precautions Recondition or dispose of empty container in accordance with governmental regulations. Do not reuse empty container without proper cleaning. Label precautions also apply to this container when empty. | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 5 of 8 Report version: 2.10 14. Transport information Land transport (DOT) Proper shipping name: Sodium hydroxide solution Hazard Class or Division: 8 UN/NA Number: UN1824 Packaging group: II Hazard Label(s): Corrosive RSPA/DOT Regulated Components: Sodium hydroxide Reportable Quantity: 907 kg (2000 Ib) Sea transport (IMDG) Proper shipping name: SODIUM HYDROXIDE SOLUTION Hazard Class or Division: 8

Further information

NFPA® Hazard Rating Health 1 Fire 0 ReactivityO HMIS® Hazard Rating Health 1 Slight Fire O Minimal Physical 0 Minimal Page 10 of 11 Key/Legend EPA = Environmental Protection Agency; TSCA = Toxic Substance Control Act: ACGIH = American Conference of Governmental Industrial Hygienists; IARC = International Agency for Research on Cancer; NIOSH = National Institute for Occupational Safety and Health; NTP = National Toxicology Program; OSHA = Occupational Safety and Health Administration; NJTSR = New Jersey Trade Secret Registry. Literature References None The information presented herein has been compiled from sources considered to be dependable, and is accurate and reliable to the best of our knowledge and belief, but is not guaranteed to be so. Since conditions of use are beyond our control, we make no warranties, expressed or implied, except those that may be contained in our written contract of sale or acknowledgment. Vendor assumes no responsibility for injury to vendee or third persons proximately caused by the material if reasonable safety procedures are not adhered to as stipulated in the data sheet. Additionally, vendor assumes no responsibility for injury to vendee or third persons proximately caused by abnormal use of the material, even if reasonable safety procedures are followed. Furthermore, vendee assumes the risk in their use of the material. Issue date January 28, 2014 Updated: March 4, 2014 End of Sheet Page 11 of 11 e ister want Aa Science Lab .com rir Chemicals & Laboratory Equipment Personal Cc Protection Calcium chloride, Anhydrous MSDS Section 1: Chemical Product and Company Identification Product Name: Calcium chloride, Anhydrous Contact Information: Catalog Codes: SLC5011, SLC2221, SLC4012, SLC4798, Sciencelab.com, Inc. SLC 1006 14025 Smith Rd. Houston, Texas 77396 CAS#: 10043-52-4 US Sales: 1-800-901-7247 RTECS: EV9800000 International Sales: 1-281-441-4400 TSCA TSCA 8(b) inventory Calcium chloride, Anhydrous Order Online: ScienceLab.com Cl#: Not available. Synonym: Chemical Name: Calcium Chloride, Anhydrous For non-emergency assistance, call: 1-281-441-4400 Chemical Formula: CaCl2 CHEMTREC (24HR Emergency Telephone), call: 1-800-424-9300 ; International CHEMTREC, call: 1-703-527-3887 ; Section 2: Composition and Information on Ingredients Composition: Name CAS # % by Weight Calcium chloride, Anhydrous 10043-52-4 100 Toxicological Data on Ingredients Calcium chloride, Anhydrous ORAL (LD50) Acute 1000 mg/kg [Rat]. 1940 mg/kg [Mouse]. References: Not available. Other Special Considerations: Not available. Created 10/09/2005 04 31 PM Last Updated 05/21/2013 12 00 PM The information above ts believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall ScienceLab.com be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if ScilenceLab.com has been advised of the possibility of such damages. p.5 Mj BOC GASES PRODUCT NAME: CARBON DIOXIDE, GAS 1. Chemical Product and Company Identification BOC Gases, BOC Gases Division of The BOC Group, Inc. BOC Canada Limited 575 Mountain Avenue 5975 Falbourne Street, Unit 2 Murray Hill, NJ 07974 Mississauga, Ontario LSR 3W6 TELEPHONE NUMBER: (908) 464-8100 TELEPHONE NUMBER: (905) 501-1700 24-HOUR EMERGENCY TELEPHONE NUMBER: CHEMTREC (800) 424-9300 (905) 501-0802 EMERGENCY RESPONSE PLAN NO: 20101 PRODUCT NAME: CARBON DIOXIDE, GAS CHEMICAL NAME: Carbon Dioxide COMMON NAMES/SYNONYMS: Carbonic Anhydride TDG (Canada) CLASSIFICATION: 2.2 Compressed gas cylinders shall not be refilled without the express written permission of the owner. Shipment of a compressed gas cylinder which has not been filled by the owner or with his/her (written) consent is a violation of transportation regulations. DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES: Although reasonable care has been taken in the preparation of this document, we extend no warranties and make no representations as to the accuracy or completeness of the information contained herein, and assume no responsibility regarding the suitability of this information for the user’s intended purposes or for the consequences of its use. Each individual should make a determination as to the suitability of the information for their particular purpose(s). MSDS: G-8 Revised: 6/7/96 Page 7 of 7 Bayer MaterialScience TRANSPORTATION EMERGENCY Bayer MaterialScience LLC CALL CHEMTREC: (800) 424-9300 Product Safety & Regulatory Affairs INTERNATIONAL: (703) 527-3887 100 Bayer Road Pittsburgh, PA 15205-9741 NON-TRANSPORTA TION USA Emergency Phone: Call Chemtrec Information Phone: (800) 662-2927 1. Product and Company Identification Product Name: CAUSTIC SODA SOLUTION (50%) Material Number: 5452627 CAS-No.: 1310-73-2 Emergency Overview Danger Color: Clear, Opaque Form: liquid Odor: Odorless. Water runoff from fire fighting may be corrosive. Irritating gases/fumes may be given off during burning or thermal decomposition. Contact with metals liberates flammable gas. Reacts violently with water. Causes respiratory tract burns. Causes skin burns. May be harmful if absorbed through skin. Causes eye burns. Causes digestive tract burns. Harmful if swallowed. A7 Health 3 Flammabili 0 R 2 Other O=Insignificant 1=Slight 2=Moderate 3=High 4=Extreme

Potential Acute Health Effects

Hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation. Slightly hazardous in case of skin contact (permeator).

Potential chronic health

Effects CARCINOGENIC EFFECTS Not available. MUTAGENIC EFFECTS Mutagenic for mammalian somatic cells. Mutagenic for bacteria and/or yeast. TERATOGENIC EFFECTS Not available. DEVELOPMENTAL TOXICITY Not available. The substance may be toxic to heart, cardiovascular system. Repeated or prolonged exposure to the substance can produce target organs damage. Section 4: First Aid Measures p. 1 Eye Contact: Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention. Skin Contact: In case of contact, immediately flush skin with plenty of water. Cover the irritated skin with an emollient. Remove contaminated clothing and shoes. Cold water may be used.Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention. Serious Skin Contact: Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate medical attention. Inhalation: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention. Serious Inhalation: Not available. Ingestion: Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight clothing such as a collar, tie, belt or waistband. Serious Ingestion: Not available. Section 5: Fire and Explosion Data Flammability of the Product: Non-flammable. Auto-Ignition Temperature: Not applicable. Flash Points: Not applicable. Flammable Limits: Not applicable. Products of Combustion: Not available. Fire Hazards in Presence of Various Substances: Not applicable. Explosion Hazards in Presence of Various Substances: Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in presence of static discharge: Not available. Fire Fighting Media and Instructions: Not applicable. Special Remarks on Fire Hazards: Not available. Special Remarks on Explosion Hazards: Furan-2-peroxycarboxylic acid + calcium chloride causes explosion at room temperature. Section 6: Accidental Release Measures Small Spill: Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and dispose of according to local and regional authority requirements. Large Spill: Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and allow to evacuate through the sanitary system. Section 7: Handling and Storage p.2

Precautionary statements

Keep locked up.. Do not ingest. Do not breathe dust. Wear suitable protective clothing. In case of insufficient ventilation, wear suitable respiratory equipment. If ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes. Keep away from incompatibles such as moisture.

Principle Routes of Exposure

Absorbed through skin. Inhalation. Ingestion Toxicity to Animals Acute oral toxicity (LD50) 1000 mg/kg [Rat] Chronic Effects on Humans: MUTAGENIC EFFECTS: Mutagenic for mammalian somatic cells. Mutagenic for bacteria and/or yeast. May cause damage to the following organs: heart, cardiovascular system. Other Toxic Effects on Humans: Hazardous in case of skin contact (irritant), of ingestion, of inhalation. Slightly hazardous in case of skin contact (permeator). Special Remarks on Toxicity to Animals: Lowest Published Lethal Dose: LDL [Rabbit] Route Oral; Dose 1384 mg/kg Special Remarks on Chronic Effects on Humans: May affect genetic material based on animal data. May cause cancer (tumorigenic) based on animal data. Special Remarks on other Toxic Effects on Humans: Acute Potential Health Effects Skin May cause severe irritation and possible burns, especially if skin is wet. Contact with dry skin causes mild irritation. Contact of solid with moist/wet skin or skin contact with strong solutions may cause marked irritation or possible burns. Eyes May cause severe irritation, possible transient corneal injury, and possible eye burns. Inhalation May cause severe irritation of the upper respiratory tract with pain, inflammation and possible burns. Ingestion: May cause severe gastrointestinal (digestive) tract irritation with nausea, vomiting and possible burns. May affect cardiovascular system (cardiac disturbances, slow heart beat), behavior (seizures), metabolism, blood, and brain, respiration (rapid respiration). Chronic Skin Contact Skin Absorption Eye Contact Inhalation Ingestion Yes No Yes Skin Contact, Eye Contact, Ingestion, Inhalation

Health hazards

2 Fire Hazard: 0 Reactivity: 1 Personal Protection: C National Fire Protection Association (U.S.A.): Health: 2 Flammability: 0 Reactivity: 2 Specific hazard: Protective Equipment: Gloves (impervious). Synthetic apron. Wear appropriate respirator when ventilation is inadequate. Safety glasses. The method of hazard communication for Bayer MaterialScience LLC is comprised of Product Labels and Material Safety Data Sheets. HMIS and NFPA ratings are provided by Bayer MaterialScience LLC as a customer service. Contact person: Product Safety Department | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 7 of 8 Report version: 2.10 Telephone: (412) 777-2835 MSDS Number: 112000014025 Updated: 07/20/2014 Report version: 2.10 This information is furnished without warranty, express or implied. This information is believed to be accurate to the best knowledge of Bayer MaterialScience LLC. The information in this MSDS relates only to the specific material designated herein. Bayer MaterialScience LLC assumes no legal responsibility for use of or reliance upon the information in this MSDS. il Changes since the last version are highlighted in the margin. This version replaces all previous versions. | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 8 of 8 Report version: 2.10 thy Drips; Condensate; Field Condensate; Gas Well Condensate; High Pressure Inlet Liquids; Lease Condensate; Natural Gas Liquids; Pipeline Liquids *** Section 1— PRODUCT AND COMPANY IDENTIFICATION * * * PRODUCTNAME: Natural Gas Condensate EMERGENCY PHONE: (800) 878-1373 PRODUCTCODES: 64741-47-5 AFTER HOURS: (800) 878-1373 PRopuceR: Antero Resources ADDRESS: 1615 Wynkoop Street CHEMTREC PHONE: (800) 424-9300 Denver, Colorado 80202 * * *

WHMIS Classification

A PREPARED BY: Loss Control (908)464-8 100/(905)501-1700 Issue date 6/1/95 Updated: 6/7/96 2. Composition, Information on Ingredients INGREDIENT % VOLUME PEL-OSHA' TLV-ACGIH* LDso or LCso Route/Species Carbon Dioxide 99.8 TO 99.999 | 5000 ppm TWA 5000 ppm TWA Not Available FORMULA: CO2 30,000 ppm STEL CAS: 124-38-9 RTECS #: FF6400000 ! As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993) * ‘As stated in the ACGIH 1994-95 Threshold Limit Values for Chemical Substances and Physical Agents EMERGENCY OVERVIEW Oxygen levels below 19.5% may cause asphyxia. Carbon dioxide exposure can cause nausea and respiratory problems. High concentrations may cause vasodilation leading to circulatory collapse. MSDS: G-8 Revised: 6/7/96 Page 1 of 7 PRODUCT NAME: CARBON DIOXIDE, GAS

Hazard categories

2.2 IDENTIFICATION NUMBER: UN 1013 SHIPPING LABEL: NONFLAMMABLE GAS 15. Regulatory Information SARA TITLE III NOTIFICATIONS AND INFORMATION SARA TITLE III HAZARD CLASSES:

Acute Health Hazards

Sudden Release of Pressure Hazard MSDS: G-8 Revised: 6/7/96 Page 6 of 7 | PRODUCT NAME: CARBON DIOXIDE, GAS

Medical Conditions Generally Aggravated by Exposure

Skin disorders, Respiratory disorders, Eye disorders Exposure: HUMAN EFFECTS AND SYMPTOMS OF OVEREXPOSURE Inhalation Acute Inhalation For Component: Sodium hydroxide Corrosive with symptoms of coughing, burning, ulceration, and pain. Skin Acute Skin For Component: Sodium hydroxide Corrosive with symptoms of reddening, itching, swelling, burning and possible permanent damage. Eye Acute Eye For Component: Sodium hydroxide | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 1 of 8 Report version: 2.10 Corrosive with symptoms of reddening, tearing, swelling, burning and possible permanent damage. Ingestion Acute Ingestion For Component: Sodium hydroxide Harmful if swallowed. Corrosive to the digestive tract with symptoms of burning and ulceration. General Effects of Exposure Chronic Effects of Exposure For Product: CAUSTIC SODA SOLUTION (50%) Repeated or prolonged overexposure may cause effects as noted under acute health effects. Carcinogenicity: No carcinogenic substances as defined by IARC, NTP and/or OSHA 3. Composition/Information on Ingredients Hazardous components Weight percent Components CAS-No. 45 - 55% Sodium hydroxide 1310-73-2 4. First aid measures Eye contact In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Use fingers to ensure that eyelids are separated and that the eye is being irrigated. Call a physician immediately. Skin contact Wash off immediately with plenty of water for at least 15 minutes. Immediately remove contaminated clothing and shoes. Call a physician immediately. Wash clothing and shoes before reuse. Inhalation If inhaled, remove to fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration using a pocket mask type resuscitator. Call a physician immediately. Ingestion Do not induce vomiting. If conscious, give 2 glasses of water. Get immediate medical attention. Never give anything by mouth to an unconscious person. 5. Firefighting measures Suitable extinguishing media: Carbon dioxide (CO2), Foam, Dry chemical Special Fire Fighting Procedures Firefighters should be equipped with self-contained breathing apparatus to protect against potentially toxic and irritating fumes. | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 2 of 8 Report version: 2.10 Unusual Fire/Explosion Hazards Water runoff from fire fighting may be corrosive. Toxic and irritating gases/fumes may be given off during burning or thermal decomposition. Contact with metals liberates flammable gas. 6. Accidental release measures Spill and Leak Procedures Cleanup personnel must use appropriate personal protective equipment. Cover spill with inert material (e. g., dry sand or earth) and collect for proper disposal. Do not allow spilled material or wash water to enter sewers, surface waters, or groundwater systems. Decontaminant/Neutralizer: Dilute hydrochloric acid solution. Wash spill area with water. Collect wash water for approved disposal. 7. Handling and storage Storage period Not Applicable Handling/Storage Precautions Do not breathe vapours or spray mist. Do not get on skin or clothing. Do not get in eyes. Do not taste or swallow. Use only with adequate ventilation/personal protection. Wash thoroughly after handling. Keep container closed when not in use. Further Info on Storage Conditions Material can be stored safely at ambient temperatures. Do not expose to direct sunlight. Protect from freezing. This product is corrosive to metal(s). Product can react with water. 8. Exposure controls/personal protection Sodium hydroxide (1310-73-2) US. ACGIH Threshold Limit Values Ceiling Limit Value: 2 mg/m3 US. OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000) PEL: 2 mg/m3 Industrial Hygiene/Ventilation Measures General dilution and local exhaust as necessary to control airborne vapors, mists, dusts and thermal decomposition products below appropriate airborne concentration standards/guidelines. Respiratory protection In case of insufficient ventilation, wear suitable respiratory equipment. Hand protection Permeation resistant gloves. Eye protection Chemical resistant goggles must be worn., Chemical safety goggles in combination with a full face shield if a splash hazard exists. Skin and body protection | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 3 of 8 Report version: 2.10 Permeation resistant clothing and foot protection. Additional Protective Measures Employees should wash their hands and face before eating, drinking, or using tobacco products. Educate and train employees in the safe use and handling of this product. Emergency showers and eye wash stations should be available. 9, Physical and chemical properties Form: liquid Color: Clear, Opaque Odor: Odorless pH: 14 Melting Point: 12 °C (53.6 °F) Boiling point/boiling range: 140 °C (284 °F) @ 1,013 hPa Flash point: Not Applicable Vapour pressure: 13 mmHg @ 15.56 °C (60.01 °F) Density: 1.54 g/cm? @ 15 °C (59 °F) (DIN 51757) 1.52 g/cm? @ 20 °C (68 °F) (DIN 51757) 1.505 g/cm? @ 50 °C (122 °F) (DIN 51757) Specific Gravity: 1.53 @ 15.56 °C (60.01 °F) Solubility in Water: Soluble Viscosity, dynamic: 79 mPa.s @ 20 °C (68 °F) 10. Stability and reactivity Hazardous Reactions Hazardous polymerisation does not occur. Stability Stable Materials to avoid Combustible material, Acids, Halogenated compounds, Halogens, Metals, Oxidizing agents, Peroxides, Organic nitro compounds Oxidizing agents Conditions to avoid Avoid contact with moisture / water. Do not expose to direct sunlight. Protect from freezing. Heat, flames and sparks. Hazardous decomposition products By Fire and Thermal Decomposition: Sodium oxides, other potentially toxic fumes Other decomposition products Hydrogen; By Fire and Thermal Decomposition: Phenol; Carbon monoxide, Carbon oxides, other potentially toxic fumes | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 4 of 8 Report version: 2.10

UN Number

UN1824 Packaging group: II Hazard Label(s): CORROSIVE Air transport ICAO/IATA) Proper shipping name: Sodium hydroxide solution Hazard Class or Division: 8 UN1824 Packaging group: II Hazard Label(s): CORROSIVE Additional Transportation Information Pollution category: Y - Ship type: 3 15. Regulatory information United States Federal Regulations OSHA Hazcom Standard Rating: Hazardous US. Toxic Substances Control Act: — Listed on the TSCA Inventory. US. EPA CERCLA Hazardous Substances (40 CFR 302): Components Sodium hydroxide Reportable quantity: 1000 Ibs SARA Section 311/312 Hazard Categories: Acute Health Hazard, Reactivity Hazard, Chronic Health Hazard US. EPA Emergency Planning and Community Right-To-Know Act (EPCRA) SARA Title III Section 302 Extremely Hazardous Substance (40 CFR 355, Appendix A): Components None US. EPA Emergency Planning and Community Right-To-Know Act (EPCRA) SARA Title III Section 313 Toxic Chemicals (40 CFR 372.65) - Supplier Notification Required: Components None | Material Name: CAUSTIC SODA SOLUTION (50%) | Article Number: 5452627 | Page: 6 of 8 Report version: 2.10 US. EPA Resource Conservation and Recovery Act (RCRA) Composite List of Hazardous Wastes and Appendix VIII Hazardous Constituents (40 CFR 261) Under RCRA, it is the responsibility of the person who generates a solid waste, as defined in 40 CFR 261.2, to determine if that waste is a hazardous waste., In its purchased form, this product meets the criteria of corrosivity under 40 CFR 261.22(a), and, when discarded in that form, should be managed as a hazardous waste. State Right-To-Know Information The following chemicals are specifically listed by individual states; other product specific health and safety data in other sections of the MSDS may also be applicable for state requirements. For details on your regulatory requirements you should contact the appropriate agency in your state. Massachusetts, New Jersey or Pennsylvania Right to Know Substance Lists: Weight percent Components CAS-No. >=1% Water 7732-18-5 45 - 55% Sodium hydroxide 1310-73-2 New Jersey Environmental Hazardous Substances List and/or New Jersey RTK Special Hazardous Substances Lists: Weight percent Components CAS-No. 45 - 55% Sodium hydroxide 1310-73-2 California Prop. 65: To the best of our knowledge, this product does not contain any of the listed chemicals, which the state of California has found to cause cancer, birth defects or other reproductive harm.

HMIS® ratings

Health 3* Flammability 0

Physical hazards

2 0=Minimal 1=Slight 2=Moderate 3=Serious 4=Severe

2.2 Label elements

oO OD