ICSC 0216 - AMMONIUM NITRATE

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AMMONIUM NITRATE	ICSC: 0216 (October 2013)
Nitric acid, ammonium salt

CAS #: 6484-52-2

UN #: see Notes

EC Number: 229-347-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on confinement and exposure to high temperatures or when contaminated with other materials.	NO contact with combustible substances or reducing agents. See Notes.	Use water in large amounts. NO other agents. 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. Seek medical attention if you feel unwell.
Skin	Redness.	Protective gloves.	Rinse skin with plenty of water or shower. Remove contaminated clothes.
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	Vomiting. Diarrhoea. Blue lips, fingernails and skin. Weakness.	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered non-combustible containers. Store and dispose of according to local regulations. Wash away remainder with plenty of water.	According to UN GHS Criteria May intensify fire; oxidizer May be harmful if swallowed Causes skin irritation Causes serious eye irritation May cause damage to blood Transportation UN Classification UN Hazard Class: 5.1; UN Pack Group: III
STORAGE
Separated from combustible substances and reducing agents. Dry. Well closed.
PACKAGING

AMMONIUM NITRATE

ICSC: 0216

PHYSICAL & CHEMICAL INFORMATION
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. The substance is a strong oxidant. It reacts with acids and combustible and reducing materials.	Formula: NH₄NO₃ Molecular mass: 80.0 Decomposes at > 210°C Melting point: 170°C Density: 1.7 g/cm³ Solubility in water, g/100ml at 20°C: 200

PHYSICAL & CHEMICAL INFORMATION

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. The substance is a strong oxidant. It reacts with acids and combustible and reducing materials.

Formula: NH₄NO₃
Molecular mass: 80.0
Decomposes at > 210°C
Melting point: 170°C
Density: 1.7 g/cm³
Solubility in water, g/100ml at 20°C: 200

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. 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 the formation of methaemoglobin. The effects may be delayed.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

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

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 the formation of methaemoglobin. The effects may be delayed.

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

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
Avoid release to the environment in circumstances different to normal use.

NOTES
UN number 1942 refers to pure ammonium nitrate with not more than 0.2% combustible material. Ammonium nitrate can refer to a range of ammonium nitrate-based fertilizers (with UN number 2067). The physico-chemical properties may vary according to the chemical composition. This ICSC covers pure ammomium nitrate - the properties of fertilizers will be different. Will turn shock-sensitive if contaminated with organic materials. Rinse contaminated clothing with plenty of water because of fire hazard. Depending on the degree of exposure, periodic medical examination is suggested. The storage of pure ammonium nitrate is often regulated - check for local regulations. In the event of a fire, large piles of ammonium nitrate present an explosion hazard. Large piles might need to be dismantled.

NOTES

UN number 1942 refers to pure ammonium nitrate with not more than 0.2% combustible material.
Ammonium nitrate can refer to a range of ammonium nitrate-based fertilizers (with UN number 2067).
The physico-chemical properties may vary according to the chemical composition.
This ICSC covers pure ammomium nitrate - the properties of fertilizers will be different.
Will turn shock-sensitive if contaminated with organic materials.
Rinse contaminated clothing with plenty of water because of fire hazard.
Depending on the degree of exposure, periodic medical examination is suggested.
The storage of pure ammonium nitrate is often regulated - check for local regulations.
In the event of a fire, large piles of ammonium nitrate present an explosion hazard. Large piles might need to be dismantled.

ADDITIONAL INFORMATION

EC Classification

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