Calcium carbonate

Properties

General
Name	Calcium carbonate
Chemical formula	CaCO3
Appearance	White solid
Physical
Formula weight	100.1 amu
Melting point	Liquifies under high pressure at 1612 K (1339 °C)
Boiling point	decomposes at 1172 K (899 °C)
Density	2.7 ×103 kg/m3
Crystal structure	Calcite or aragonite
Solubility	0.0013 g in 100g water
Thermochemistry
ΔfH0liquid	-1154 kJ/mol
ΔfH0solid	-1207 kJ/mol
S0solid	93 J/mol·K
Safety
Ingestion	Low hazard for accidental injestion.
Inhalation	Low hazard, may cause problems in the long term.
Skin	Low hazard.
Eyes	Low hazard.
More info	Hazardous Chemical Database (http://ull.chemistry.uakron.edu/erd/chemicals/11/10226.html)
SI units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references

Calcium carbonate is a chemical compound, with chemical formula CaCO₃.

It is a common substance found as rock in all parts of the world and is the main component of animal bones and teeth.

As rock, it is found in the following states:

• Aragonite
• Calcite
• Chalk
• Limestone
• Marble