The chemical formula for calcium phosphate is Ca3(PO4)2. Calcium phosphate is composed of three atoms of calcium, two atoms of phosphorus and eight atoms of oxygen, for a combined molar mass of 310.17 grams per mole.
The ions that comprise calcium phosphate are the Ca2+ calcium ion and the (PO43?) phosphate ion. More broadly, the term calcium phosphate may refer to combinations of the calcium ion with metaphosphate, orthophosphate or pyrophosphate ions. For example, monocalcium phosphate is represented by the chemical formula Ca(H2PO4)2, while the formula for tricalcium phosphate is Ca3(PO4)2. Calcium phosphates are found in milk, blood and bone.