OXYGEN GAS
Basic information
- Chemical formula(s): \({\rm O_2}\)
- Other names: -
- CAS: 7782-41-7
- International Chemical Safety Card (ICSC): 0138
- Flammability: no
- NOAA’s description: colourless, odourless, and tasteless gas; noncombustible, but actively supports the burning of combustible materials; some materials that don not burn in air burn in oxygen
NFPA 704 (fire diamond)
- Health (blue): 3 - short exposure could cause serious temporary or moderate residual injury.
- Flammability (red): 0 - will not burn under typical fire conditions, will not burn in air unless exposed to a temperature of 820 °C for more than 5 minutes.
- Instability–reactivity (yellow): 0 - normally stable, even under fire exposure conditions, and is not reactive with water.
- Special notice (white):
- OX - oxidiser
Hazard statements
| Code | Phrase |
|---|---|
| H270 | May cause or intensify fire; oxidiser of category 1 |
| H280 | contains gas under pressure; may explode if heated |
Precautionary statements
| Code | Phrase |
|---|---|
| P220 | keep away from clothing and other combustible materials |
| P244 | keep valves and fittings free from oil and grease |
| P370+P376 | IN CASE OF FIRE: stop leak if safe to do so |
| P403 | store in a well-ventilated place |
Protective measures
Gloves
No skin protection necessary.
Safety goggles
Always wear safety goggles when handling gaseous oxygen. Corrective glasses are not considered safety googles.
Clothing
- Wear long trousers and fully covered shoes.
- Contact lenses are forbidden while working with chemical substances, even in combination with safety glasses.
- Do not wear cosmetics.
- Do not wear synthetic clothing while working with flammable liquids or gases or when a hazard is present as these materials tend to melt and stick to exposed skin.
- Do not wear headphones.
Spill management
Not applicable.