IPCS INCHEM Home
AMMONIUM NITRATE
ICSC: 0216
Peer-Review Status: 15.03.2001 Validated
Nitric acid, ammonium salt 
CAS #: 6484-52-2 RTECS #: BR9050000
UN #: 1942
EINECS #: 299-347-8
    Formula: NH4NO3
Molecular mass: 80.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire.  NO contact with combustible substances or reducing agents.  Use water in large amounts. NO other agents. In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION Risk of fire and explosion on confinement and exposure to high temperatures. Explosive.    In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Cough. Headache. Sore throat. See Ingestion.  Use local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness.  Protective gloves.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Blue lips, fingernails and skin. Convulsions. Diarrhoea. Dizziness. Vomiting. Weakness.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Sweep spilled substance into covered non-combustible containers. Wash away remainder with plenty of water.   
EC Classification
 
UN Classification
UN Hazard Class: 5.1; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-51S1942 or 51GO2-I+II+III.
NFPA Code: H2; F0; R3; OX. 
Provision to contain effluent from fire extinguishing. Separated from combustible substances and reducing agents. Dry. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-WHITE HYGROSCOPIC SOLID IN VARIOUS FORMS. 

Physical dangers
 

Chemical dangers
Heating may cause violent combustion or explosion. Decomposes on heating. This produces toxic fumes of of nitrogen oxides. The substance is a strong oxidant. It reacts with combustible and reducing materials. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the blood. This may result in formation of methaemoglobin. Medical observation is indicated. The effects may be delayed. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at at ~210°C°C
Melting point: 170°C
Density: 1.7 g/cm³
Solubility in water, g/100ml at 20°C: 190  
This substance may be hazardous to the environment. Special attention should be given to water quality. 

NOTES
Becomes shock-sensitive when mixed with organic materials.
Rinse contaminated clothes (fire hazard) with plenty of water.
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Card has been partly updated in October 2005.
See section Emergency Response. 

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