General Information
Version
3
Revision date
2025-12-03
Product name
Hydrogen Sulfide
Chemical name
hydrogen sulphide
CAS No.
7783-06-4
supplier name
Airgas USA, LLC
Icons in SDS
Company Information
company name
Airgas USA, LLC
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H220, H280, H330, H335, H400
Hazard statements
Code
Statements
H220
Extremely flammable gas
Section 2
SECTION 2: Hazards identification
Signal word
Danger
Hazard statements
H220 - Extremely flammable gas. H280 - Contains gas under pressure; may explode if heated. H330 - Fatal if inhaled. H335 - May cause respiratory irritation. H400 - Very toxic to aquatic life. May cause frostbite. Extended exposure to gas reduces the ability to smell sulfides. May form explosive mixtures with air. Symptoms may be delayed.
Precautionary statements
General : Read and follow all Safety Data Sheets (SDS’S) before use. Read label before use. Keep out of reach of children. If medical advice is needed, have product container or label at hand. Close valve after each use and when empty. Use equipment rated for cylinder pressure. Do not open valve until connected to equipment prepared for use. Use a back flow preventative device in the piping. Use only equipment of compatible materials of construction. Always keep container in upright position. Do not depend on odor to detect presence of gas. Approach suspected leak area with caution.
Prevention
P284 - In case of inadequate ventilation wear respiratory protection. P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P271 - Use only outdoors or in a well-ventilated area. P273 - Avoid release to the environment. P260 - Do not breathe gas.
Response
P391 - Collect spillage. P377 - Leaking gas fire: Do not extinguish, unless leak can be stopped safely. P381 - In case of leakage, eliminate all ignition sources. P304 + P340, P310 - IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER or doctor.
Storage
P405 - Store locked up. P410 + P403 - Protect from sunlight. P403 + P233 - Store in a well-ventilated place. Keep container tightly closed.
Disposal
P501 - Dispose of contents and container in accordance with all local, regional, national and international regulations.
2.3 Other hazards
Liquid can cause burns similar to frostbite. Hazards identified when used : No known significant effects or critical hazards.
2.1 Classification of the substance or mixture
GASES UNDER PRESSURE - Liquefied gas ACUTE TOXICITY (inhalation) - Category 2 SPECIFIC TARGET ORGAN TOXICITY (SINGLE EXPOSURE) (Respiratory tract irritation) - Category 3 AQUATIC HAZARD (ACUTE) - Category 1
