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AMMONIUM PERCHLORATE
ICSC: 1255
Peer-Review Status: 04.06.2006 Validated
Perchloric acid, ammonium salt 
CAS #: 7790-98-9 RTECS #: SC7520000
UN #: 1442
EC #: 017-009-00-0
EINECS #: 232-235-1
    Formula: NH4ClO4
Molecular mass: 117.5

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire. See Notes.  NO contact with combustible substances, reducing agents or organic materials.  In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION See Chemical Dangers. Risk of fire and explosion.  Do NOT expose to heat, friction or shock.  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.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness. Pain.  Protective gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Burning sensation. Nausea. Vomiting. Diarrhoea.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. If appropriate, moisten first to prevent dusting. Sweep spilled substance into covered containers. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents.   
EC Classification
Symbol: O; R: 9-44; S: (2)-14-16-27-36/37; Note: G 
UN Classification
UN Hazard Class: 5.1; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-51S1442.
NFPA Code: H1; F0; R4. 
Fireproof. Separated from combustible substances, reducing agents and metals. See Chemical Dangers. Well closed. 

IMPORTANT DATA
Physical State; Appearance
WHITE HYGROSCOPIC CRYSTALS. 

Physical dangers
No data. 

Chemical dangers
May decompose on shock, friction, concussion or heating. The substance is a strong oxidant. It reacts violently with combustible and reducing materials and metals. This produces toxic and corrosive fumes including ammonia and hydrogen chloride. This generates fire and explosion hazard. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

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

Effects of long-term or repeated exposure
The substance may have effects on the thyroid. This may result in reduced levels of thyroid hormones. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at >200°C
See Notes.
Density: 1.95 g/cm³
Solubility in water, g/100ml at 25°C: 20  
This substance may be hazardous to the environment. Special attention should be given to crustacea. 

NOTES
Different decomposition temperatures are given in the literature.
Unstabilized substance may explode on heating.
Health effects of exposure to the substance have not been investigated adequately.
Rinse contaminated clothes (fire hazard) with plenty of water.
Card has been partially updated in January 2008: see Physical Properties. 

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