ICSC 0185 - SODIUM NITRATE

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SODIUM NITRATE	ICSC: 0185 (October 2001)
Chile saltpeter

CAS #: 7631-99-4

UN #: 1498

EC Number: 231-554-3

	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 contact with reducing agents.	NO contact with combustible substances or reducing agents.	In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest. 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.
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. Headache. Laboured breathing. Confusion. Nausea. Unconsciousness.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Sweep spilled substance into plastic or glass containers. Wash away remainder with plenty of water.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 5.1; UN Pack Group: III
STORAGE
Separated from combustible substances and reducing agents. Dry.
PACKAGING

SODIUM NITRATE

ICSC: 0185

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS HYGROSCOPIC CRYSTALS. Physical dangers Chemical dangers Decomposes on heating. This increases fire hazard. The substance is a strong oxidant. It reacts with combustible and reducing materials. This generates fire and explosion hazard.	Formula: NaNO₃ Molecular mass: 85 Decomposes at 380°C Melting point: 308°C Density: 2.3 g/cm³ Solubility in water, g/100ml at 25°C: 92.1

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS HYGROSCOPIC CRYSTALS.

Physical dangers

Chemical dangers
Decomposes on heating. This increases fire hazard. The substance is a strong oxidant. It reacts with combustible and reducing materials. This generates fire and explosion hazard.

Formula: NaNO₃
Molecular mass: 85
Decomposes at 380°C
Melting point: 308°C
Density: 2.3 g/cm³
Solubility in water, g/100ml at 25°C: 92.1

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 substance is irritating to the eyes, skin and respiratory tract. Ingestion could cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. Effects of long-term or repeated exposure

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

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

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
Rinse contaminated clothing with plenty of water because of fire hazard. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.

ADDITIONAL INFORMATION

EC Classification

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