In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION
EXPOSURE
Inhalation
Local exhaust.
Fresh air, rest.
Skin
Protective gloves.
Rinse skin with plenty of water or shower.
Eyes
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth.
SPILLAGE DISPOSAL
PACKAGING & LABELLING
Sweep spilled substance into containers. (Extra personal protection: P1 filter respirator for inert particles).
EMERGENCY RESPONSE
STORAGE
Separated from acids, aluminium and ammonium salts.
IMPORTANT DATA
Physical State; Appearance ODOURLESS, TASTELESS POWDER OR CRYSTALS
Chemical dangers The substance decomposes on heating 825 °C producing corrosive fumes of calcium oxide. Reacts with acids, aluminium and ammonium salts.
Occupational exposure limits TLV: 10 mg/m³ (as TWA) (total dust, containing no asbestos and 1% crystalline silica) (ACGIH 1998).
Routes of exposure The substance can be absorbed into the body by inhalation.
PHYSICAL PROPERTIES
ENVIRONMENTAL DATA
Melting point (decomposes): 825°C Density: 2.8 g/cm³ Solubility in water: none
NOTES
Health effects of exposure to the substance have been investigated, but none has been found. Calcium carbonate exists in nature as mineral aragonite and calcite (as in limestone, chalk and marble).
