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NITROMETHANE
ICSC: 0522
Peer-Review Status: 04.10.1997 Validated
Nitrocarbol 
CAS #: 75-52-5 RTECS #: PA9800000
UN #: 1261
EC #: 609-036-00-7
EINECS #: 200-876-6
    Formula: CH3NO2
Molecular mass: 61.04

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking.  Use water spray, powder, alcohol-resistant foam, carbon dioxide. 
EXPLOSION Vapour/air mixtures are explosive. Risk of fire and explosion on contact with incompatible substances. See Chemical Dangers. See Notes.  Above 35°C use a closed system, ventilation and explosion-proof electrical equipment. Do NOT expose to friction or shock.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
Inhalation Cough. Drowsiness. Headache. Nausea. Sore throat. Unconciousness. Vomiting.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. See Notes. 
Skin Dry skin. Redness.  Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes Redness.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work.  Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents.   
EC Classification
Symbol: Xn; R: 5-10-22; S: (2)-41 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-898.
NFPA Code: H1; F3; R3. 
Fireproof. Separated from incompatible materials. See Chemical Dangers. See Notes. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS VISCOUS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
May decompose explosively on shock, friction or concussion. May explode on heating. Decomposes on burning. This produces nitrogen oxides. Reacts with alkalis. Reacts violently with strong oxidants and strong reducing agents. This generates fire and explosion hazard. Mixtures with amines are shock-sensitive. 

Occupational exposure limits
MAK: Carcinogen category: 3B; Skin absorption (H); (DFG 2006). 

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion. 

Inhalation risk
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system. This may result in central nervous system depression. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the peripheral nervous system, kidneys and liver. This may result in impaired functions. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 101°C
Melting point: -29°C
Relative density (water = 1): 1.14
Vapour pressure, kPa at 20°C: 3.7
Relative vapour density (air = 1): 2.1
Flash point: 35°C c.c.
Auto-ignition temperature: 417°C
Explosive limits, vol% in air: 7.3-63 
 

NOTES
Will turn shock-sensitive if contaminated with acids, bases, metal oxides, hydrocarbons and other combustible materials.
Combustion in a confined space may turn into detonation.
The odour warning when the exposure limit value is exceeded is insufficient.
Card has been partially updated in August 2007: see Occupational Exposure Limits. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Nitromethane  (IARC Summary & Evaluation, Volume 77, 2000)