Airgas

Hydrogen SDS

Safety Data Sheet for Airgas Hydrogen, revised 2025-04-11.

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Hazards

• H220 Extremely flammable gas.
• H280 Contains gas under pressure; may explode if heated.
• May displace oxygen and cause rapid suffocation.
• Burns with invisible flame.
• May form explosive mixtures with air.

Protective equipment

• 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.
• 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, gases or dusts. If contact is possible
• Select a respirator that meets the appropriate standard or certification based on the hazard and potential for exposure; use under a respiratory protection program. Wear appropriate respirator when ve
• When there is a risk of ignition from static electricity, wear anti-static protective clothing; for greatest protection, anti-static overalls, boots and gloves.
• Appropriate footwear and any additional skin protection measures should be selected based on the task and approved by a specialist before handling.

First aid

• Eyes: Immediately flush eyes with plenty of water, occasionally lifting the upper and lower eyelids. Check for and remove any contact lenses. Get medical attention if irritation occurs.
• Skin: Flush contaminated skin with plenty of water. Remove contaminated clothing and shoes. Soak contaminated clothing thoroughly with water before removing it to avoid static discharge and gas ignition. Get medical attention if symptoms occur.
• Swallowed: As this product is a gas, refer to the inhalation section.
• Breathing it in: Remove victim to fresh air and keep at rest in a position comfortable for breathing.

Fire

Use an extinguishing agent suitable for the surrounding fire. Do not extinguish a leaking gas fire unless the leak can be stopped safely. Use water spray to keep fire-exposed containers cool; firefighters should wear SCBA with a full face-piece in positive pressure mode.

Spills

Immediately contact emergency personnel. Stop leak if without risk. Use spark-proof tools and explosion-proof equipment. Eliminate all ignition sources and evacuate surrounding areas.

Summary taken from the SDS and checked by IDSDS. The full SDS is the official document.