Calcium Phosphates
- Calcium dihydrogen phosphate, E341(i): Ca(H2PO4)2
- Calcium hydrogen phosphate, E341(ii): CaHPO4
- Tricalcium phosphate (or tricalcic phosphate), E341(iii): Ca3(PO4)2, sometimes referred to simply as calcium phosphate or calcium orthophosphate
- Hydroxyapatite Ca5(PO4)3(OH)
- Apatite Ca10(PO4)6(OH, F, Cl, Br)2
- Octacalcium phosphate Ca8H2(PO4)6.5H2O
In addition to the above, of the compounds occurring in the CaO-H2O-P4O10 phase diagram, Ca4P2O9 (probably Ca3(PO4)2.CaO) is notable.
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