Hydrogen Chloride

SECTION 2: Hazards identification

(29 CFR 1910.1200) Physical State Gas. [COLORLESS TO SLIGHTLY YELLOW LIQUEFIED COM PRESSED GAS WITH AN IRRITATING ODOR; OR COLORLESS FUMING GAS WITH A PUNGENT, IRRITATING ODOR] Emergency Overview DANGER! CAUSES SEVERE RESPIRATORY TRACT, EYE AND SKIN BURNS. HARMFUL IF INHALED. MAY CAUSE TARGET ORGAN DAMAGE, BASED ON ANIMAL DATA. CONTENTS UNDER PRESSURE. Do not puncture or incinerate container. Do not breathe gas. Do not get on skin or clothing. May cause target organ damage, based on animal data. Use only with adequate ventilation. Keep container closed. Do not get In eyes, on skin or on clothing. Avoid breathing gas. Wash thoroughly after handling. Contact with rapidly expanding gases can cause frostbite. Target Organs May cause damage to the following organs: lungs, upper respiratory tract, skin, eyes, Routes of Entry Inhalation Dermal Eyes Page 1of9 NIACET CORPORATION sos 400 47th Street Niacet Niagara Falls, NY 14304 Anhydrous HCI Fax (716) 285-1497 Phone (716)285-1494 Issue date March 2018 EMERGENCY PHONE NUMBER: (800) 424-9300; (202) 483-7616

Potential Acute Health Effects

Eyes Severely corrosive to the eyes. Causes severe burns. Contact with rapidly expanding gas may cause burns or frostbite. Skin Severely corrosive to the skin. Causes severe burns. Contact with rapidly expanding gas may cause burns or frostbite. Inhalation Toxic by Inhalation. Severely corrosive to the respiratory system. 1 Ingestion Ingestion Is not a normal route of exposure for gases

Potential chronic health

effects Target organs May cause damage to the following organs: lungs, upper respiratory tract, skin, eyes. aggravated by over- Medical conditions Pre-existing disorders Involving any target organs mentioned in this MSDS as being at risk may be aggravated by over-exposure to this product. exposure See toxicological information (Section 11) SECTION Ill - COMPOSITION, INFORMATION ON INGREDIENTS Product Name Name CAS Number %Volume Exposure Limits Hydrogen Chloride 7647-01-0 100 ACGIH TLV (United States, 1/2009) C: 2 ppm NIOSH REL (United States, 6/2009) CEIL: 7 mg/m3 CEIL: 5 ppm on CARCINOGENIC EFFECTS A4 (Not classifiable for humans or animals.) by ACGIH, 3 Humans (Not classifiable for humans.) by IARC. May cause damage to the following organs: lungs, upper respiratory tract, skin, eyes. Other Toxic Effects on Extremely hazardous by the following route of exposure: of skin contact (corrosive), Humans of eye contact (corrosive), of Inhalation (lung corrosive). Specific Effects Carcinogenic Effects No known significant effect or critical hazards Mutagenic Effects No known significant effect or critical hazards Reproduction Toxicity No known significant effect or critical hazards SECTION XII - ECOLOGICAL INFORMATION Aquatic ecotoxiclty Product/Ingredient Name Test Result Species Exposure Hydrogen Chloride Acute LCS0 282000 ug/L Fresh water Fish 96 Hours Acute LCS0 260000 ug/L Marine water Crustaceans 48 hours Acute LCS0 240000 ug/L Marine water Crustaceans 48 hours Products of Degradation Environmental Fate Not available

Precautionary statements

suitable protective equipment (section 8). Shut off gas supply If this can be done safely. Isolate area until gas has dispersed. Environmental Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains and sewers. Methods for Immediately contact emergency personnel. Stop leak if without risk. Clean-up Note: see Section I for emergency contact information and section XIII for information on waste disposal. SECTION VII - HANDLING AND STORAGE Handling Use only with adequate ventilation. Wash thoroughly after handling, High pressure pressure. Close valve after each use and when empty. Do not get In eyes, on skin or gas. Do not puncture or Incinerate container. equipment rated for cylinder us7 on clothing. Keep container closed. Do not get on skin or clothing. Protect cylinders from physical damage; do not drag, roll, slide, or drop. Use a suitable hand truck for cylinder movement.

Storage

Cylinders should be stored upright, with valve prQtectlon cap In place, and firmly secured to prevent falling or being knocked over. Cylinder temperatures should not exceed 52 °c (125 °F}. SECTION VIII - EXPOSURE CONTOL/PERSONAL PROTECTION Enqfneerinq Controls Use only with adequate ventilation. Use process inclosures, local exhaust Page 3 of9 NIACET CORPORATION SDS 400 4yth Street Nlacet Niagara Falls, NY 14304 Anhydrous HCI Fax (716) 285-1497 Phone (716) 285-1494 Issue date March 2018 EMERGENCY PHONE NUMBER: (800) 424-9300; (202) 483-7616 ventilation or other engineering controls to keep worker exposure to airborne contaminants below any recommended or statutory limits, Persona/ Protection Eyes Safety eyewear complying with an approved standard should be used when a risk assessment Indicates this Is necessary to avoid exposure to liquid splashes, mists or dusts. Skfn Personal protective equipment for the body should be selected based on the task being performed and the risks involved and should be approved by a specialist before handling this product. I Respiratory Use a properly fitted, air-purifying or air-fed respirator complying with an approved standard if a risk assessment indicates this ls necessary. Respirator selection must be based on known or anticipated exposure levels, the hazards of the product and the safe working limits of the selected respirator. The applicable standards are (US) 29 CFR 1910.1~4 and {Canada) 294.4-93 Hands Chemical-resistant, Impervious gloves complying with an approved standard should be worn at all times when handling chemical products If a risk assessment indicates this Is necessary. Personal Protection for Self-contained breathing apparatus (SCBA) should be used to avoid inhalation of the Large Splll product. Full chemical-resistant suit and self-contained breathing apparatus should be worn only by trained and authorized persons. Product Name Name CAS Number %Volume Exposure limits Hydrogen Chloride 7647-01-0 100 ACGIH,TLV (United States, 1/2009) c: 2 ppm NIOSH REL (United States, 6/2009} CEIL: 7 mg/m3 CEIL: 5 ppm

Environmental hazards

No known significant effe~ts or critical hazards Toxicity to Environment Not available SECTION XIII - DISPOSAL Product removed from the cylinder must be disposed of in accordance with appropriate Federal, State, local regulation. Return cylinders with residual product to Niacet Corporation. Do not dispose of locally. Page 6 of9 NIACET CORPORATION SDS 400 47th Street N'iacet Niagara Falls, NY 14304 Anhydrous HCI Fax (716)285-1497 Phone (716) 285-1494 Issue date March 2018 EMERGENCY PHONE NUMBER: (800) 424-9300; (202) 483-7616 SECTION XIV -TRANSPORTATION Proper Regulatory

UN Number

Packing Information Shipping Class

Additional information

Group Name Reportable quantity: 5000 lbs. (2270 kg) Limited quantity: Yes Packaging Instruction DOT Hydrogen Not Passenger aircraft UN1050 Chloride, 2.3 Applicable Quantity limitation: Class lflcation Anhydrous {Gas) Forbidden ♦

Special Provisions

3 • Quantity limitation: . Cargo aircraft . Forbidden Explosive Limit and Limited Quantity Index: 0 ERAP Index: 25 Passenger Carrying Hydrogen Not TOG Ship Index: Chloride, 2.3 UN1050 Applicable Forbidden 38 Mexico Hydrogen Not None

2.1 Classification of the substance or mixture

Anhydrous (Gas) Passenger Carrying Road or ~ail Index: Forbidden UN1050 Chloride, 2.3 Applicable Anhydrous (Gas) Refer to CFR 49 (or authority having jurisdiction) to determine the information required for shipment of the product. Page7of9 NIACET CORPORATION SDS 400 47th Street Nlacet Niagara Falls, NY 14304 Anhydrous HCI Fax (716) 285-1497 Phone (716)285-1494 Issue date March 2018 EMERGENCY PHONE NUMBER: (800) 424-9300; (202) 483-7616 SECTION XV- REGULATORY INFORMATION United States U.S. Federal Regulation United States Inventory (TSCA 8b): This materlal is listed or exempted, SARA 302/304/311/312 extremely hazardous substances: Hydrogen chloride SARA 302/304 emergency planning and notification: Hydrogen chloride SARA 302/304/311/312 hazardous chemicals: Hydrogen chloride SARA 311/312 MSDS distribution - chemical Inventory- hazard identification: Hydrogen chloride: Sudden release of pressure, Immediate (acute) health hazard, Delayed (chronic) health hazard Clean Water Act (CWA) 311: Hydrogen chloride Clean Air Act (CAA} 112 regulated flammable substances: Hydrogen chloride Clean Air Act (CAA) 112 regulated toxic substances: Hydrogen chloride SARA313 Product Name CAS Number Concentration From R - Reporting Hydrogen Chloride 7647-01-0 100 Requirements Supplier Notification Hydrogen Chloride 7647-01-0 100 SARA 313 notifications must not be detached from the MSDS and any copying and redistribution of the MSDS shall Include copying and redistribution of the notice attached to copies of the MSDS subsequently redistributed. State Regulations Massachusetts Substances: This material is listed. New Jersey Hazardous Substances: This material ls listed. New Jersey Toxic Catastrophe Prevention Act: This material is listed. New York Acutely Hazardous Substances: This material Is listed. Pennsylvanla RTK Hazardous Substances: This material Is listed, Canada

Potential health effects

Effects of a Single (Acute) Overexposure Inhalation. Asphyxiant. Effects are due to lack of oxygen. Moderate concentrations may cause headache, drowsiness, dizziness, excitation, excess salivation, vomiting, and unconsciousness. Lack of oxygen can kill. Skin Contact: No harm expected. Swallowing: This product is a gas at normal temperature and pressure. Eye Contact: May cause eye irritation. Effects of Repeated (Chronic) Overexposure: No harm expected. Other Effects of Overexposure: Asphyxiant. Lack of oxygen can kill.

Medical Conditions Generally Aggravated by Exposure

Overexposure Inhalation may aggravate asthma and inflammatory or fibrotic pulmonary disease.

Environmental effects

None known. For further information, see section 12, Ecological Information.