Calcium carbonate
From Biocrawler, the free encyclopedia.
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General |
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|---|---|
| Name | Calcium carbonate |
| Chemical formula | CaCO3 |
| Appearance | White solid |
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Physical |
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| 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, aragonite or vaterite |
| Solubility | 0.0013 g in 100g water |
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Thermochemistry |
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| ΔfH0liquid | -1154 kJ/mol |
| ΔfH0solid | -1207 kJ/mol |
| S0solid | 93 J/(mol·K) |
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Safety | |
| Ingestion | Low hazard for accidental ingestion. |
| Inhalation | Low hazard, may cause problems in the long term. |
| Skin | Low hazard. |
| Eyes | Low hazard. |
| More info | Hazardous Chemical Database |
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SI units were used where possible. Unless otherwise stated, standard conditions were used. | |
Calcium carbonate is a chemical compound, with chemical formula CaCO3. It is commonly used as an antacid, and is the active ingredient in agricultural lime.
It is a common substance found as rock in all parts of the world and is the main component of seashells and the shell of snails.
As rock, it is found in the following states:
fr:Carbonate de calcium nl:Calciumcarbonaat ja:炭酸カルシウム zh:碳酸鈣
