ICSC 1255 - AMMONIUM PERCHLORATE

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AMMONIUM PERCHLORATE	ICSC: 1255 (June 2006)
Perchloric acid, ammonium salt

CAS #: 7790-98-9

UN #: 1442

EC Number: 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	PREVENTION	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

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.

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, and the unstabilized substance may explode on heating. Health effects of exposure to the substance have not been investigated adequately. Rinse contaminated clothing with plenty of water because of fire hazard.

ADDITIONAL INFORMATION

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

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