IPCS INCHEM Home
N-NITROSODIMETHYLAMINE
ICSC: 0525
Peer-Review Status: 13.03.2001 Validated
Dimethylnitrosamine
N-Methyl-N-nitrosomethylamine
DMN 
CAS #: 62-75-9 RTECS #: IQ0525000
UN #: 2810
EC #: 612-077-00-3
EINECS #: 200-549-8
    Formula: C2H6N2O / (CH3)2NN=O
Molecular mass: 74.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use powder, carbon dioxide. 
EXPLOSION      
 
EXPOSURE   AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Sore throat. Cough. Nausea. Diarrhoea. Vomiting. Headache. Weakness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Pain. Redness.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal cramps. Further see Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Give a slurry of activated charcoal in water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Personal protection: chemical protection suit including self-contained breathing apparatus. 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 transport with food and feedstuffs.
Unbreakable packaging.
Put breakable packaging into closed unbreakable container. 
EC Classification
Symbol: T+, N; R: 45-25-26-48/25-51/53; S: 53-45-61; Note: E 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: I 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61G61B.  Separated from strong oxidants and food and feedstuffs. Cool. Keep in the dark. Well closed. 

IMPORTANT DATA
Physical State; Appearance
YELLOW OILY LIQUID. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces nitrogen oxides. Reacts with strong oxidants and strong bases. 

Occupational exposure limits
MAK: Carcinogen category: 2; Skin absorption (H); (DFG 2006). 

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

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation 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 liver. This may result in jaundice. The effects may be delayed. See Notes. Medical observation is indicated. 

Effects of long-term or repeated exposure
The substance may have effects on the liver. This may result in liver function impairment and cirrhosis. This substance is probably carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 151°C
Relative density (water = 1): 1.0
Solubility in water: very good
Vapour pressure, Pa at 20°C: 360
Relative vapour density (air = 1): 2.56
Flash point: 61°C
Octanol/water partition coefficient as log Pow: -0.57  
 

NOTES
The symptoms of jaundice do not become manifest until some hours have passed.
Environmental effects from the substance have not been investigated adequately.
Card has been partially updated in August 2007: see Ingestion First Aid, 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
       N-Nitrosodimethylamine (IARC Summary & Evaluation, Volume 1, 1972)