SECTION 2: Hazards identification

HMIS Hazard Rating: (rev. Apr-98; Tox-98) EMERGENCY OVERVIEW DANGER! FLAMMABLE - BLOOD TOXIN AND CARCINOGEN - ABSORBED THROUGH THE SKIN - CENTRAL NERVOUS SYSTEM - HARMFUL OR FATAL IF SWALLOWED - ASPIRATION HAZARD High fire hazard. Keep away from heat, spark, open flame, and other ignition sources. If ingested, do NOT induce vomiting, as this may cause chemical pneumonia (fluid in the lungs). Contact may cause eye, skin and mucous membrane irritation. Harmful if absorbed through the skin. Avoid prolonged breathing of vapors or mists. Inhalation may cause irritation, anesthetic effects (dizziness, nausea, headache, intoxication), and respiratory system effects. Long-term exposure may cause blood disease, including anemia and leukemia. EYES Moderate to severe irritant. Contact with liquid or vapor may cause irritation. SKIN Moderate to severe irritant. May cause skin irritation with prolonged or repeated contact. Practically non- toxic if absorbed following acute (single) exposure. Liquid may be absorbed through the skin in toxic amounts if large areas of skin are exposed repeatedly. INGESTION 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. Ingestion may cause gastrointestinal disturbances, including irritation, nausea, vomiting and diarrhea, and central nervous system (brain) effects similar to alcohol intoxication. In severe cases, tremors, convulsions, loss of consciousness, coma, respiratory arrest, and death may occur. INHALATION Excessive exposure may cause irritation to the nose, throat, lungs and respiratory tract. Central nervous system (brain) effects may include headache, dizziness, loss of balance and coordination, unconsciousness, coma, respiratory failure, and death. Effects to the blood (including decreased platelet and white blood cell counts), cardiovascular system, nervous system, retina, lungs, gastrointestinal system, spleen, and kidneys have been reported from large, acute (short) and repeated or prolonged exposures.

Potential chronic health

and CARCINOGENICITY Benzene is a regulated human carcinogen. Benzene has the potential to cause bone marrow depression, aplastic anemia (low red blood cell count) and other blood diseases, including leukemia, after repeated and prolonged exposure. Benzene can cause liver and kidney toxicity. AND CARCINOGENICITY Carcinogenicity OSHA YES IARC: (1) NTP: YES ACGIH: (A1) Numerous epidemiological (human) and animal studies have reported an increased incidence or a causal relationship between leukemia and benzene exposure. Mutagenicity: positive 12.

Medical Conditions Generally Aggravated by Exposure

Irritation from skin exposure may aggravate existing open wounds, skin disorders, and dermatitis (rash). Pre-existing chronic respiratory disease, liver or kidney dysfunction, or blood, cardiovascular and central nervous system disorders may be aggravated by exposure. 4. FIRST AID MEASURES (rev. Apr-98) EYES In case of contact with eyes, immediately flush with clean, low-pressure water for at least 15 min. Hold eyelids open to ensure adequate flushing. Seek medical attention. SKIN Remove contaminated clothing. Wash contaminated areas thoroughly with soap and water or waterless hand cleanser. Obtain medical attention if irritation or redness develops. INGESTION DO NOT INDUCE VOMITING. Do not give liquids. Obtain immediate medical attention. If spontaneous vomiting occurs, lean victim forward to reduce the risk of aspiration. Small amounts of material which enter the mouth should be rinsed out until the taste is dissipated. INHALATION Remove person to fresh air. If person is not breathing, ensure an open airway and provide artificial respiration. If necessary, provide additional oxygen once breathing is restored if trained to do so. Seek medical attention immediately. NOTE TO PHYSICIAN OSHA and US Coast Guard require that a person exposed to benzene in an emergency have a urine sample taken at the end of the shift and have a urine phenol test performed within 72 hours. For results equal to or greater than 75 ml/L of urine, employees must have a complete blood count every month for three months after the emergency exposure. See OSHA 29 CFR 1910.1028 or USCG 49 CFR 193. 5. FIRE FIGHTING MEASURES (rev. Jan-99) FLAMMABLE PROPERTIES: FLASH POINT: 12 oF (-11oC) AUTOIGNITION TEMPERATURE: 928 oF (498 oC) OSHA/NFPA FLAMMABILITY CLASS: 1B (flammable liquid) LOWER EXPLOSIVE LIMIT (%): 1.3% UPPER EXPLOSIVE LIMIT (%): 7.9% FIRE AND EXPLOSION HAZARDS Vapors may be ignited rapidly when exposed to heat, spark, open flame or other source of ignition. Flowing product may be ignited by self-generated static electricity. When mixed with air and exposed to an ignition source, flammable vapors can burn in the open or explode in confined spaces. Being heavier than air, vapors may travel long distances to an ignition source and flash back. Runoff to sewer may cause fire or explosion hazard. EXTINGUISHING MEDIA SMALL FIRES: Any extinguisher suitable for Class B fires, dry chemical, CO2, water spray, fire fighting foam, or Halon. LARGE FIRES: Water spray, fog or fire fighting foam. Water may be ineffective for fighting the fire, but may be used to cool fire-exposed containers. FIRE FIGHTING INSTRUCTIONS Small fires in the incipient (beginning) stage may typically be extinguished using handheld portable fire extinguishers and other fire fighting equipment. Firefighting activities that may result in potential exposure to high heat, smoke or toxic by-products of combustion should require NIOSH/MSHA- approved pressure-demand self-contained breathing apparatus with full facepiece and full protective clothing. Isolate area around container involved in fire. Cool tanks, shells, and containers exposed to fire and excessive heat with water. For massive fires the use of unmanned hose holders or monitor nozzles may be advantageous to further minimize personnel exposure. Major fires may require withdrawal, allowing the tank to burn. Large storage tank fires typically require specially trained personnel and equipment to extinguish the fire, often including the need for properly applied fire fighting foam. See Section 16 for the NFPA 704 Hazard Rating. 6. ACCIDENTAL RELEASE MEASURES (rev. Apr-98) ACTIVATE FACILITY SPILL CONTINGENCY or EMERGENCY PLAN. Evacuate nonessential personnel and remove or secure all ignition sources. Consider wind direction; stay upwind and uphill, if possible. Evaluate the direction of product travel, diking, sewers, etc. to confirm spill areas. Spills may infiltrate subsurface soil and groundwater; professional assistance may be necessary to determine the extent of subsurface impact. Carefully contain and stop the source of the spill, if safe to do so. Protect bodies of water by diking, absorbents, or absorbent boom, if possible. Do not flush down sewer or drainage systems, unless system is designed and permitted to handle such material. The use of fire fighting foam may be useful in certain situations to reduce vapors. The proper use of water spray may effectively disperse product vapors or the liquid itself, preventing contact with ignition sources or areas/equipment that require protection. Take up with sand or other oil absorbing materials. Carefully shovel, scoop or sweep up into a waste container for reclamation or disposal - caution, flammable vapors may accumulate in closed containers. Response and clean-up crews must be properly trained and must utilize proper protective equipment (see Section 8). 7. HANDLING and STORAGE (rev. Apr-98) HANDLING PRECAUTIONS Handle as a flammable liquid. Keep away from heat, sparks, and open flame! Electrical equipment should be approved for classified area. Bond and ground containers during product transfer to reduce the possibility of static-initiated fire or explosion. Special slow load procedures for "switch loading" must be followed to avoid the static ignition hazard that can exist when higher flash point material (such as fuel oil) is loaded into tanks previously containing low flash point products (such as this product) - see API Publication 2003, "Protection Against Ignitions Arising Out Of Static, Lightning and Stray Currents. STORAGE PRECAUTIONS Keep away from flame, sparks, excessive temperatures and open flame. Use approved vented containers. Keep containers closed and clearly labeled. Empty product containers or vessels may contain explosive vapors. Do not pressurize, cut, heat, weld or expose such containers to sources of ignition. Store in a well-ventilated area. This storage area should comply with NFPA 30 "Flammable and Combustible Liquid Code". Avoid storage near incompatible materials. The cleaning of tanks previously containing this product should follow API Recommended Practice (RP) 2013 "Cleaning Mobile Tanks In Flammable and Combustible Liquid Service" and API RP 2015 "Cleaning Petroleum Storage Tanks". WORK/HYGIENIC PRACTICES Emergency eye wash capability should be available in the near proximity to operations presenting a potential splash exposure. Use good personal hygiene practices. Avoid repeated and/or prolonged skin exposure. Wash hands before eating, drinking, smoking, or using toilet facilities. Do not use as a cleaning solvent on the skin. Do not use solvents or harsh abrasive skin cleaners for washing this product from exposed skin areas. Waterless hand cleaners are effective. Promptly remove contaminated clothing and launder before reuse. Use care when laundering to prevent the formation of flammable vapors which could ignite via washer or dryer. Consider the need to discard contaminated leather shoes and gloves. 8. EXPOSURE CONTROLS and PERSONAL PROTECTION (rev. Apr-98) ENGINEERING CONTROLS Use adequate ventilation to keep vapor concentrations of this product below occupational exposure and flammability limits, particularly in confined spaces. EYE/FACE PROTECTION Safety glasses or goggles are recommended where there is a possibility of splashing or spraying. SKIN PROTECTION Gloves constructed of Viton are recommended for heavy exposure; Viton, nitrile, PVC, or neoprene for intermittent exposure. Chemical protective clothing such as DuPont Barricade ® or equivalent recommended based on degree of exposure. Note: The resistance of specific material may vary from product to product as well as with degree of exposure. Consult manufacturer specifications for further information. RESPIRATORY PROTECTION A NIOSH/MSHA-approved air-purifying respirator with organic vapor cartridges or canister may be permissible under certain circumstances where airborne concentrations are or may be expected to exceed exposure limits or for odor or irritation. Protection provided by air-purifying respirators is limited. Refer to OSHA 29 CFR 1910.134, ANSI Z88.2-1992, NIOSH Respirator Decision Logic, and the manufacturer for additional guidance on respiratory protection selection and limitations. Use a positive pressure, air-supplied respirator if there is a potential for uncontrolled release, exposure levels are not known, in oxygen-deficient atmospheres, or any other circumstance where an air-purifying respirator may not provide adequate protection. 9. PHYSICAL and CHEMICAL PROPERTIES (rev. Mar-95)

Appearance/Odor

A clear, water-like liquid A sweet, aromatic odor. ODOR THRESHOLD 4.7 ppm BASIC PHYSICAL PROPERTIES BOILING RANGE: 176 oF (80 oC) VAPOR PRESSURE: 74.6 mm Hg @ 68 oF (20 oC) VAPOR DENSITY (air = 1): 2.8 SPECIFIC GRAVITY (H2O = 1): 0.87 EVAPORATION RATE: High PERCENT VOLATILES:100 % SOLUBILITY (H2O): Insoluble to slightly soluble 10. STABILITY and REACTIVITY (rev. Mar-95) STABILITY: Stable. Hazardous polymerization will not occur. CONDITIONS TO AVOID and INCOMPATIBLE MATERIALS Material is stable under normal conditions. Avoid high temperatures, open flames, sparks, welding, smoking and other ignition sources HAZARDOUS DECOMPOSITION PRODUCTS Carbon monoxide, carbon dioxide and non-combusted hydrocarbons (smoke). Contact with nitric and sulfuric acids will form nitrocresols that can decompose violently. 11. TOXICOLOGICAL PROPERTIES (rev. Apr-98; Tox-98) ACUTE TOXICITY Acute Dermal LD50 (rabbits): > 9.4 ml/kg Acute Oral LD50 (mouse): 4.7 g/kg Acute inhalation LC50 10,000 ppm (rat; 7 hours)Eye irritation (rabbit) mild to moderate Primary dermal irritation (rabbits): mild to moderate

ECOLOGICAL INFORMATION

rev. Apr-98) Keep out of sewers, drainage areas and waterways. Report spills and releases, as applicable, under Federal and State regulations. 13.

Disposal

CONSIDERATIONS(rev. Apr-98) Consult federal, state and local waste regulations to determine appropriate disposal options. 14. TRANSPORTATION INFORMATION (rev. Apr-98) DOT PROPER SHIPPING NAME: Benzene DOT HAZARD CLASS and PACKING GROUP: 3, PG II DOT IDENTIFICATION NUMBER: UN 1114 DOT SHIPPING LABEL: FLAMMABLE LIQUID 15. REGULATORY INFORMATION (rev. Apr-98) U.S. FEDERAL, STATE, and LOCAL REGULATORY INFORMATION This product and its constituents listed herein are on the EPA TSCA Inventory. Any spill or uncontrolled release of this product, including any substantial threat of release, may be subject to federal, state and/or local reporting requirements. This product and/or its constituents may also be subject to other federal, state, or local regulations; consult those regulations applicable to your facility/operation. CLEAN WATER ACT (OIL SPILLS) Any spill or release of this product to "navigable waters" (essentially any surface water, including certain wetlands) or adjoining shorelines sufficient to cause a visible sheen or deposit of a sludge or emulsion must be reported immediately to the National Response Center (1-800-424-8802) or, if not practical, the U.S. Coast Guard with follow-up to the National Response Center, as required by U.S. Federal Law. Also contact appropriate state and local regulatory agencies as required. CERCLA SECTION 103 and SARA SECTION 304 (RELEASE TO THE ENVIRONMENT) Benzene is a CERCLA Section 103 "hazardous substance" subject to CERCLA and SARA Section 304 reporting requirements. Reportable Quantity: 10 pounds SARA SECTION 311/312 - HAZARD CLASSES ACUTE HEALTH CHRONIC HEALTH FIRE SUDDEN RELEASE OF PRESSURE REACTIVE X -- SARA SECTION 313 - SUPPLIER NOTIFICATION This product contains the following toxic chemicals subject to the reporting requirements of section 313 of the Emergency Planning and Community Right-To-Know Act (EPCRA) of 1986 and of 40 CFR 372: INGREDIENT NAME (CAS NUMBER) CONCENTRATION WT. PERCENT Benzene (71-43-2) 100 CANADIAN REGULATORY INFORMATION (WHMIS) Class B, Division 2 (Flammable Liquid) Class D, Division 2A (Very toxic by other means) and Class D, Division 2B (Toxic by other means) 16.

Further information

rev. Apr-98) NFPA® HAZARD RATING HEALTH: 2 Moderate FIRE: 3 Serious REACTIVITY: 0 Minimal HMIS® HAZARD RATING HEALTH: 3 * Serious FIRE: 3 Serious REACTIVITY: 0 Minimal * Chronic SUPERSEDES MSDS DATED: 04/23/98 ABBREVIATIONS: AP = Approximately < = Less than > = Greater than N/A = Not Applicable N/D = Not Determined ppm = parts per million ACRONYMS: ACGIH American Conference of Governmental NTP National Toxicology Program Industrial Hygienists OPA Oil Pollution Act of 1990 AIHA American Industrial Hygiene Association OSHA U.S. Occupational Safety & Health ANSI American National Standards Institute Administration (212) 642-4900 PEL Permissible Exposure Limit (OSHA) API American Petroleum Institute RCRA Resource Conservation and Recovery Act (202) 682-8000 REL Recommended Exposure Limit (NIOSH) CERCLA Comprehensive Emergency Response, SARA Superfund Amendments and Compensation, and Liability Act Reauthorization Act of 1986 Title III DOT U.S. Department of Transportation SCBA Self-Contained Breathing Apparatus [General Info: (800) 467-4922] SPCC Spill Prevention, Control, and EPA U.S. Environmental Protection Agency Countermeasures HMIS Hazardous Materials Information System STEL Short-Term Exposure Limit (generally 15 IARC International Agency For Research On minutes) Cancer TLV Threshold Limit Value (ACGIH) MSHA Mine Safety and Health Administration TSCA Toxic Substances Control Act NFPA National Fire Protection Association (617) TWA Time Weighted Average (8 hr.) 770-3000 WEEL Workplace Environmental Exposure NIOSH National Institute of Occupational Safety Level (AIHA) and Health WHMIS Workplace Hazardous Materials NOIC Notice of Intended Change (proposed Information System (Canada) change to ACGIH TLV) DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES 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. HYDROGEN SULFIDE August 31, 1995 PHONE NUMBERS PHILLIPS 66 COMPANY Emergency: (918) 661-8118 A Division of Phillips Petroleum Company General MSDS Information: Bartlesville, Oklahoma 74004 (918) 661-8327 For Additional MSDSs: (918) 661-5952 A. Product Identification Synonyms: Sulfuretted Hydrogen; Hepatic Gas; Hydrosulfuric Acid Chemical Name: Hydrogen Sulfide Chemical Family: Inorganic Acid Chemical Formula: H2S CAS Reg. No.: 7783-06-4 Product No.: Not Established Product and/or Components Entered on EPA's TSCA Inventory: YES This product is in U.S. commerce, and is listed in the Toxic Substances Control Act (TSCA) Inventory of Chemicals; hence, it may be subject to applicable TSCA provisions and restrictions. B. Hazardous Components CAS % OSHA ACGIH Ingredients Number By Wt. PEL TLV Hydrogen Sulfide 7783-06-4 100 10 ppm 10 ppm@ @ Short term exposure limit is 15 ppm. C. Personal Protection Information Ventilation: Use adequate ventilation to control exposure below recommended levels. Respiratory Protection: For concentrations exceeding the recommended exposure level, use NIOSH/MSHA approved air purifying respirator. If conditions immediately dangerous to life or health (IDLH) exist, use NIOSH/MSHA approved self-contained breathing apparatus (SCBA) equipment. Eye Protection: For splash protection use chemical goggles and face shield. Skin Protection: Gloves and coveralls of rubber or neoprene construction if liquid contact could occur. Avoid http://seweb2.phillips66.com/hes/msds.nsf/a356436cfd6168.../3c44ab9ab3716022862565e1004e792b?OpenDocumen 12/30/98 Hydrogen Sulfide unnecessary skin contamination with material. NOTE: Personal protection information shown in Section C is based upon general information as to normal uses and conditions. Where special or unusual uses or conditions exist, it is suggested that the expert assistance of an industrial hygienist or other qualified professional be sought. D. Handling and Storage Precautions Proper personal protective equipment must be used when handling this chemical. Do not get liquefied gas into eyes, on skin, or on clothing. May cause freeze burns upon direct contact. Do not breathe vapor, mist, fume or dust. May be harmful. Launder contaminated clothing before reuse. Use only with adequate ventilation. Wash thoroughly after handling. Keep away from heat, sparks, and flames. Secure container to prevent damage. Store in a well-ventilated area. Store in tightly closed container. Bond and ground during transfer. Do not puncture or incinerate container. Handle cylinders with care. Protect cylinders from physical damage. Containers should not be subjected to temperatures above 125F. Do not heat cylinders by any means to increase the product discharge rate. Use a check valve or trap in the discharge line to prevent backflows into the cylinders. All electrical equipment should be non-sparking or explosion proof. Test atmosphere periodically for H2S. Do not rely on sense of smell for H2S release. Use product in a closed system. E. Reactivity Data Stability: Stable Conditions to Avoid: Heat, flame, or other sources of ignition. Incompatibility (Materials to Avoid): Concentrated nitric acid, sulfuric acid, and other strong oxidizers. Vapors will combust spontaneously when mixed with chlorine, nitrogen trifluoride, or oxygen trifluoride vapors. Distinct hydrogen sulfide odor can be masked by high concentrations of vapors or gas of other chemicals. Hazardous Polymerization: Will Not Occur Conditions to Avoid: Not Applicable Hazardous Decomposition Products: Sulfur Oxides formed when burned. F. Health Hazard Data Recommended Exposure Limits: See Section B. Acute Effects of Overexposure: Eye: May be irritating to eyes at levels near the permissible exposure limit. Liquid may cause freeze burns. http://seweb2.phillips66.com/hes/msds.nsf/a356436cfd6168.../3c44ab9ab3716022862565e1004e792b?OpenDocumen 12/30/98 Hydrogen Sulfide Skin: Gas not expected to be irritating to skin. Liquid may cause freeze burns, irritation, reddening or swelling. Inhalation: Toxic by inhalation. Release of liquefied product may create atmospheres which can rapidly exceed lethal levels. Acute low level exposure that exceeds the permissible exposure limit will result in irritation of the nose and throat, headache, dizziness, nausea, and nervousness. Ingestion: Liquid may cause freeze burns and death. Subchronic and Chronic Effects of Overexposure: Humans breathing up to 8 ppm of hydrogen sulfide over a two month period experienced nausea, headache, shortness of breath, sleep disturbance, eye and throat irritation.

Other Health Effects

The odor of hydrogen sulfide may not be recognized after prolonged inhalation due to paralysis of the sense of smell. Effects from inhaling the fumes may lead to chronic bronchitis, respiratory irritation, increased loss of pulmonary function, and tearing of the eyes.

Health hazards

Categories Animal Human Known Carcinogen ___ ___ Toxic _X_ Suspect Carcinogen ___ ___ Corrosive ___ Mutagen ___ ___ Irritant ___ Teratogen ___ ___ Target Organ Toxin _X_ Allergic Sensitizer ___ ___ Specify - Skin & Eye Hazard - Freeze burns; Highly Toxic ___ ___ Lung Hazard-Irritant; Nerve Toxin First Aid and Emergency Procedures: NOTE: For freeze burns, immediately flush effected area with tap water for at least fifteen minutes, seek immediate medical attention. Eye: Flush eyes with running water for at least fifteen minutes. If irritation or adverse symptoms develop, seek medical attention. Skin: Wash skin with soap and water for at least fifteen minutes. If irritation or adverse symptoms develop, seek medical attention. Inhalation: Immediately remove from exposure. If breathing is difficult, give oxygen. If breathing ceases, administer artificial respiration followed by oxygen. Seek immediate medical attention. Ingestion: If illness or adverse symptoms develop, seek medical attention. Prompt medical attention is mandatory in all cases of overexposure to hydrogen sulfide. Rescue personnel should be equipped with NIOSH/MSHA approved self-contained breathing apparatus (SCBA). Rescue personnel should recognize the hazards of overexposure due to olfactory fatigue. The use of rescue equipment which might contain ignition sources or cause static discharges should be avoided. http://seweb2.phillips66.com/hes/msds.nsf/a356436cfd6168.../3c44ab9ab3716022862565e1004e792b?OpenDocumen 12/30/98 Hydrogen Sulfide Nitrite treatment as medical therapy has been used in persons overexposed to hydrogen sulfide, but the benefits of this treatment are still considered by some to be of questionable usefulness. Therapy can only be undertaken by qualified emergency medical personnel. Treatment should be initiated with inhalation of amyl nitrite for fifteen to thirty seconds of each minute until 10 ml of a 3% solution of sodium nitrite can be injected intravenously at a rate of 2.5 to 5 ml per minute. Sodium nitrite injections may be repeated if necessary. G. Physical Data Appearance: Colorless Gas or Liquefied Gas Odor: Repulsive (rotten egg) Odor Boiling Point: -75F (-60C) Vapor Pressure: 394.0 psia @ 100F (37.8C) Vapor Density (Air = 1): 1.176 @ 60F (15.6C)(Calculated) Solubility in Water: Slight Specific Gravity (H2O = 1): 0.79 @ 60F (15.6C) Saturation Pressure Percent Volatile by Volume: 100 Evaporation Rate (Ethyl Ether = 1): >1 Viscosity: Not Applicable H. Fire and Explosion Data Flash Point (Method Used): Flammable Gas Flammable Limits (% by Volume in Air): LEL - 4 UEL - 44 Fire Extinguishing Media: Dry chemical, foam or carbon dioxide (CO2) Special Fire Fighting Procedures: Shut off source, if possible. Water for or spray may be used to cool exposed containers and equipment. Use NIOSH/MSHA approved self-contained breathing apparatus. Wear protective equipment and/or garments described in Section C. Fire and Explosion Hazards: Sulfur oxides formed when burned. Vapors are heavier than air and may travel to an ignition source and flashback. Autoignition temperature is 500F (260C). I. Spill, Leak and Disposal Procedures

Precautionary statements

Required if Material is Released or Spilled Evacuate area of all unnecessary personnel. Wear protective equipment and/or garments described in Section C if exposure conditions warrant. Shut off source. Ventilate confined area. Waste Disposal (Insure Conformity with all Applicable Disposal Regulations): Incinerate or place in permitted waste management facility. J. DOT Transportation Shipping Name: Hydrogen sulfide, liquefied

Hazard categories

2.3 (Poisonous gas) ID Number: UN 1053 http://seweb2.phillips66.com/hes/msds.nsf/a356436cfd6168.../3c44ab9ab3716022862565e1004e792b?OpenDocumen 12/30/98 Hydrogen Sulfide Packing Group: Not applicable Marking: Hydrogen Sulfide, liquefied, UN1053, RQ* Inhalation Label: Poison gas and Flammable gas Placard: Poisonous gas/1053 Hazardous Substance/RQ: Hydrogen sulfide/100# Shipping Description: Hydrogen sulfide, liquefied, 2.3 (Poisonous gas), UN 1053, RQ*, Poison - Inhalation Hazard Zone B Packaging References: 49 CFR 173.304, 173.314, 173.315 * Enter the letters "RQ" as shown only if the hazardous substance is present in a quantity, in one package, which equals or exceeds the reportable quantity (RQ) shown for the hazardous substance. K. RCRA Classification - Unadulterated Product as a Waste Ignitable (D001); Hydrogen Sulfide (U135) Prior to disposal, consult your environmental contact to determine if the TCLP (Toxicity Characteristic Leaching Procedure, EPA Test Method 1311) is required. Reference 40 CFR Part 261. L. Protection Required for Work on Contaminated Equipment Contact immediate supervisor for specific instructions before work is initiated. Wear protective equipment and/or garments described in Section C if exposure conditions warrant. If repair of user's equipment is required, purge equipment with an inert gas prior to repairing. M. Hazard Classification _X_ This product meets the following hazard definition(s) as defined by the Occupational Safety and Health Hazard Communication Standard (29 CFR Section 1910.1200): ___ Combustible Liquid ___ Flammable Aerosol ___ Oxidizer _X_ Compressed Gas ___ Explosive ___ Pyrophoric _X_ Flammable Gas _X_ Health Hazard (Section F) ___ Unstable ___ Flammable Liquid ___ Organic Peroxide ___ Water Reactive ___ Flammable Solid ___ Based on information presently available, this product does not meet any of the hazard definitions of 29 CFR Section 1910.1200. N. Additional Comments As of the preparation date, this product did not contain a chemical or chemicals subject to the reporting requirements of Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372. NFPA 704 Hazard Codes - - - - - - - - Signals Least - 0 Health : 3 Slight - 1 Flammability: 4 Moderate - 2 http://seweb2.phillips66.com/hes/msds.nsf/a356436cfd6168.../3c44ab9ab3716022862565e1004e792b?OpenDocumen 12/30/98 Hydrogen Sulfide Reactivity : 0 High - 3 Special Haz.: - Extreme - 4 Phillips Petroleum Company (references to Phillips Petroleum Company or Phillips includes its divisions, affiliates and subsidiaries) believes that the information contained herein (including data and statements) is accurate as of the date hereof. NO WARRANTY OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, IS MADE AS CONCERNS THE INFORMATION HEREIN PROVIDED. The information provided herein relates only to the specific product designated and may not be valid where such product is used in combination with any other materials or in any process. Further, since the conditions and methods of use of the product and information referred to herein are beyond the control of Phillips, Phillips expressly disclaims any and all liability as to any results obtained or arising from any use of the product or such information. No statement made herein shall be construed as a perm ission or recommendation for the use of any product in a manner that might infringe existing patents. http://seweb2.phillips66.com/hes/msds.nsf/a356436cfd6168.../3c44ab9ab3716022862565e1004e792b?OpenDocumen 12/30/98 Material Safety Data Sheet Phenol Liquid Phenol Liquid Section 1 - Chemical Product and Company Identification MSDS Name: Phenol Liquid Catalog Numbers: A88I-500, A931I-1, A931I-200, A931I-4, A931I-500, S801181, S801181MF Synonyms: Phenylic acid Company Identification: Fisher Scientific 1 Reagent Lane Fair Lawn, NJ 07410 For information, call: 201-796-7100 Emergency Number: 201-796-7100 For CHEMTREC assistance, call: 800-424-9300 For International CHEMTREC assistance, call: 703-527-3887