Calcium carbonate

Molecular Formula：CaCO₃ | Molecular Weight： 100.088 | Synonyms：C.I. 77220, C.I. Pigment White 18, Chalk, Weightily Calcium Carbonate, Calcium Carbonate Light, Calcium Carbonate Heavy, Biological Calcium Carbonate, Oyster Shell Powder, Carbonic acid calcium salt (1:1), Limestone