The chemical Calcium carbonate has a designated molecular formula of CCaO3 and a molecular weight of 100.086 g/mol. Synonyms may include: C.I. 77220, K 250, N 34, N 43, T 130-2500, R Jutan, C.I. Pigment White 18, Aeromatt, Akadama, Albacar, Albacar 5970, Albafil (ChemID).