diazomethane

CAS 334-88-3 CH₂N₂ MW 42.1000 Danger
Flame Flame
Corrosion Corrosion
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Health Hazard Health Hazard
Emergency: 911 | Poison Control: 1-800-222-1222

Hazard Statements

CodeStatementHazard Class
H220 Extremely flammable gas Flammable gases
H315 Causes skin irritation Skin corrosion/irritation
H317 May cause an allergic skin reaction Sensitization, Skin
H318 Causes serious eye damage Serious eye damage/eye irritation
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitization, respiratory
H370 Causes damage to organs Specific target organ toxicity, single exposure
H371 May cause damage to organs Specific target organ toxicity, single exposure

Precautionary Statements

CodeStatement
P203 Obtain, read and follow all safety instructions before use.
P210 Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking.
P222 Do not allow contact with air.
P233 Keep container tightly closed.
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.
P264+P265 Wash hands [and ...] thoroughly after handling. Do not touch eyes.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P284 [In case of inadequate ventilation] Wear respiratory protection.
P302+P352 IF ON SKIN: wash with plenty of water/...
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P308+P316 IF exposed or concerned: Get emergency medical help immediately.
P317 Get emergency medical help.
P321 Specific treatment (see information on this label and safety datasheet)).
P332+P317 If skin irritation occurs: Get medical help.
P333+P317 If skin irritation or rash occurs: Get medical help.
P342+P316 If experiencing respiratory symptoms: Get emergence medical help immediately.
P362+P364 Take off contaminated clothing and wash it before reuse.
P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381 In case of leakage, eliminate all ignition sources.
P403 Store in a well-ventilated place.
P405 Store locked up.
P501 Dispose of contents/container to ...

Exposure Limits

OSHA PEL0.2 ppm
NIOSH REL0.2 ppm
NIOSH IDLH2 ppm
Skin NotationYes — can be absorbed through skin

Physical Properties

Yellow gas with a musty odor.

Boiling Point-9°F
Vapor Pressure>1 atm

Target Organs

Lungs Eyes

severe respiratory irritation and sensitization, asthma attacks, eye and mucous membrane irritation

Synonyms

azimethylene; azomethylene; diazirine

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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