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单词 Precipitated calcium carbonate
释义

Precipitated calcium carbonate

英语百科

Calcium carbonate

Crystal structure of calcite
Calcium carbonate chunks from clamshell
500-milligram calcium supplements made from calcium carbonate

Calcium carbonate is a chemical compound with the formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone) and is the main component of pearls and the shells of marine organisms,snails, and eggs. Calcium carbonate is the active ingredient in agricultural lime and is created when calcium ions in hard water react with carbonate ions to create limescale. It is medicinally used as a calcium supplement or as an antacid, but excessive consumption can be hazardous.

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