Dinitrogen oxide

CAS 10024-97-2 N₂O MW 44.0000 Danger
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Health Hazard Health Hazard
Emergency: 911 | Poison Control: 1-800-222-1222

Hazard Statements

CodeStatementHazard Class
H270 May cause or intensify fire; oxidizer Oxidizing gases
H280 Contains gas under pressure; may explode if heated Gases under pressure
H336 May cause drowsiness or dizziness Specific target organ toxicity, single exposure; Narcotic effects
H360 May damage fertility or the unborn child Reproductive toxicity
H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure

Precautionary Statements

CodeStatement
P203 Obtain, read and follow all safety instructions before use.
P220 Keep away from clothing and other combustible materials.
P244 Keep valves and fittings free from oil and grease.
P260 Do not breathe dust/fume/gas/mist/vapors/spray.
P261 Avoid breathing dust/fume/gas/mist/vapors/spray.
P264 Wash hands [and ...] thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P318 if exposed or concerned, get medical advice.
P319 Get medical help if you feel unwell.
P370+P376 in case of fire: Stop leak if safe to do so.
P403 Store in a well-ventilated place.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P410+P403 Protect from sunlight. Store in a well-ventilated place.
P501 Dispose of contents/container to ...

Exposure Limits

NIOSH REL25 ppm
Skin NotationYes — can be absorbed through skin

Physical Properties

Colorless gas with a slightly sweet odor.

Boiling Point-127°F
Vapor Pressure51.3 atm
Specific Gravity1.266 at -128.2°F

Synonyms

dinitrogen monoxide; hyponitrous acid anhydride; laughing gas; nitrogen oxide

Data Sources

Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.

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