Calcium carbonate

  • Calcite
  • Chalk
  • Limestone
  • Marble chips
Formula
CaCO3
Structure
Description
Gray to tan solid.

Registry Numbers and Inventories.
CAS
1317-65-3
EC (EINECS/ELINCS)
215-279-6
RTECS
EV9580000
RTECS class
Other
Beilstein/Gmelin
8544 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
CCaO3
Formula mass
100.1
Melting point, °C
1340
Density
2.71 g/cm3
Solubility in water
10 mg/L
Heat of fusion
14.2 kJ/ol

Hazards and Protection.
Storage
Store in a cool, dry place.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Acids, aluminum, strong oxidizers, magnesium.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire.

Health.
Exposure limit(s)
NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp) OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
Exposure effects
   Ingestion
Low hazard for usual industrial handling.
   Inhalation
Dust is irritating to the respiratory tract. Low hazard for usual industrial handling. May cause liver abnormalities.
   Skin
Dust causes mechanical irritation.
   Eyes
Dust may cause mechanical irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.