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AMMONIUM PERCHLORATEICSC: 1255
June 2006
CAS #: 7790-98-9Perchloric acid, ammonium salt
UN #: 1442
EINECS #: 232-235-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION 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.  See Chemical Dangers. Risk of fire and explosion.  NO contact with combustible substances, reducing agents or organic materials.  Do NOT expose to heat, friction or shock.  In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
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 CLASSIFICATION & 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. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 5.1; UN Pack Group: II 

STORAGE
Fireproof. Separated from combustible substances, reducing agents and metals. See Chemical Dangers. Well closed. 
PACKAGING
 
AMMONIUM PERCHLORATE ICSC: 1255
PHYSICAL & CHEMICAL INFORMATION

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. 

Formula: NH4ClO4
Molecular mass: 117.5
Decomposes at >200°C
See Notes.
Density: 1.95 g/cm³
Solubility in water, g/100ml at 25°C: 20  


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 aerosol is irritating to the eyes, skin and respiratory tract. 

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

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


Occupational exposure limits
 

ENVIRONMENT
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. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: O; R: 9-44; S: (2)-14-16-27-36/37; Note: G 

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    See Also:
       Toxicological Abbreviations