ICSC 0969 - MAGNESIUM CARBONATE

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MAGNESIUM CARBONATE	ICSC: 0969 (May 2010)
Magnesite Carbonic acid, magnesium salt

CAS #: 546-93-0

EC Number: 208-915-9

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: all extinguishing agents allowed.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough.	Avoid inhalation of fine dust and mist. Use local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves.	Rinse skin with plenty of water or shower.
Eyes		Wear safety spectacles.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.	According to UN GHS Criteria No hazard classification according to GHS criteria Transportation UN Classification
STORAGE
Separated from acids.
PACKAGING

MAGNESIUM CARBONATE

ICSC: 0969

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE POWDER. Physical dangers Chemical dangers Decomposes on heating. This produces irritating fumes. Reacts with acids. This produces carbon dioxide gas.	Formula: MgCO₃ Molecular mass: 84.3 Decomposes at 350°C Relative density (water = 1): 2.95 Solubility in water, g/100ml at 20°C: 0.01 (very poor)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE POWDER.

Physical dangers

Chemical dangers
Decomposes on heating. This produces irritating fumes. Reacts with acids. This produces carbon dioxide gas.

Formula: MgCO₃
Molecular mass: 84.3
Decomposes at 350°C
Relative density (water = 1): 2.95
Solubility in water, g/100ml at 20°C: 0.01 (very poor)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation. Effects of short-term exposure	Inhalation risk A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. Effects of long-term or repeated exposure Lungs may be affected by repeated or prolongated exposure to dust particles.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.

Effects of long-term or repeated exposure
Lungs may be affected by repeated or prolongated exposure to dust particles.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
Magnesite (CAS 7760-50-1) is naturally occuring magnesium carbonate mineral. Magnesite can contain crystalline silica, see ICSC 0808.

ADDITIONAL INFORMATION

EC Classification

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