IPCS INCHEM Home
UREAICSC: 0595
July 1997
CAS #: 57-13-6Carbamide
Carbonyldiamide
EINECS #: 200-315-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Shortness of breath. Sore throat.  Use local exhaust.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Convulsions. Headache. Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Give one or two glasses of water to drink. Rest. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from incompatible materials. See Chemical Dangers. 
PACKAGING
 
UREA ICSC: 0595
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating above the melting point. This produces toxic gases. Reacts with strong oxidants, nitrites, inorganic chlorides, chlorites and perchlorates. This generates fire and explosion hazard. 

Formula: NH2CONH2 / CH4N2O
Molecular mass: 60.1
Melting point: 132.7-135°C
Density: g/cm³
Solubility in water: miscible
Octanol/water partition coefficient as log Pow: -3.00/-1.54  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. 

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly , especially if powdered. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. 


Occupational exposure limits
 

ENVIRONMENT
 

NOTES
Temperature of decomposition unknown in literature. 

ADDITIONAL INFORMATION
  EC Classification
 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations
       Urea (WHO Food Additives Series 32)
       UREA (JECFA Evaluation)
       Urea  (SIDS)