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General |
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| Name | Calcium carbonate |
| Chemical formula | Ca CO3 |
| 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, aragoniteAragonite is a polymorph of the mineral calcite, both having the chemical composition CaCO. Its structure, differs from calcite and leads to a different crystal shape. The type location for aragonite is Molina de Aragon ( Guadalajara, Spain), 25 km outsid or vateriteVaterite (CaCO) is a polymorph of aragonite and calcite. |
| Solubility | 0.0013 gFor other meanings of gram see gram (disambiguation). The gram (also spelt gramme is a unit of measurement of mass, and is defined in the SI system of units as one thousandth of a kilogram. See 1 E -3 kg for comparisons with other masses. The symbol for g in 100g water |
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Thermochemistry |
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| ΔfH0liquidThe standard enthalpy of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element or compound at 25 degrees Cels | -1154 kJThe joule (symbol J also called newton metre or coulomb volt is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honour of the physicist James Prescott Joule (1818-1889). 1 joule 1 N · 1 m 1 newton · 1 metre 1 k/ moleThe mole (symbol: mol) is one of the seven SI base units and is commonly used in chemistry. It measures the amount of substance of a system and is defined as the amount of substance that contains as many elementary entities as there are atoms in exactly 0 |
| ΔfH0solid | -1207 kJ/mole |
| S0solid | 93 J/mole·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. Disclaimer and references | |
Calcium carbonate is a chemical compound, with chemical formula Ca C O3. 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:
Carbonates