Editing Calcium phosphate (section)

==Orthophosphates, di- and monohydrogen phosphates==
These materials contain Ca<sup>2+</sup> combined with {{chem|PO|4|3−}}, {{chem|HPO|4|2−}}, or {{chem|H|2|PO|4|−}}:
* [[Monocalcium phosphate]], E341 (CAS# 7758-23-8 for anhydrous; CAS#10031-30-8 for monohydrate: Ca(H<sub>2</sub>PO<sub>4</sub>)<sub>2</sub> and Ca(H<sub>2</sub>PO<sub>4</sub>)<sub>2</sub>(H<sub>2</sub>O)
* [[Dicalcium phosphate]] (dibasic calcium phosphate), E341(ii) (CAS# 7757-93-9): CaHPO<sub>4</sub> (mineral: [[monetite]]), dihydrate CaHPO<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub> (mineral: [[brushite]]) and monohydrate CaHPO<sub>4</sub>(H<sub>2</sub>O)
* [[Tricalcium phosphate]] (tribasic calcium phosphate or tricalcic phosphate, sometimes referred to as calcium phosphate or calcium orthophosphate, [[whitlockite]]), E341(iii) (CAS#7758-87-4): Ca<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>
* [[Octacalcium phosphate]] (CAS# 13767-12-9): Ca<sub>8</sub>H<sub>2</sub>(PO<sub>4</sub>)<sub>6</sub>·5H<sub>2</sub>O
* [[Amorphous calcium phosphate]] is a glassy precipitate of variable composition that may be present in biological systems.