Table 1.
Synthetic calcium phosphates relevant to medical applications.
| Calcium Phosphates in the CaO-P2O5 Arrangement | ||||
|---|---|---|---|---|
| Abbreviation | Systematic Name | Mineralogical Name | Chemical Formula |
Molar Ratio Ca/P |
| CP | Calcium metaphosphate | – | Ca(PO3)2 | 0.5 |
| C2P | Calcium pyrophosphate | – | Ca2P2O7 | 1.0 |
| C3P, TCP | Tricalcium phospahte | Whitlockite | Ca3(PO4)2 | 1.5 |
| C4P, TTCP | Tetracalcium phosphate | – | Ca4(PO4)2O | 2.0 |
| Calcium Phosphates in the CaO-P2O5-H2O Arrangement | ||||
| Abbreviation | Systematic Name | Mineralogical Name |
Chemical
Formula |
Molar Ratio Ca/P |
| MCPA | Calcium dihydrogenphosphate | – | Ca(H2PO4)2 | 0.5 |
| MCPM | Calcium dihydrogenphosphate monohydrate | – | Ca(H2PO4)2 ⋅H2O | 0.5 |
| DCPD | Dicalcium phosphate dihydrate | Brushite | CaHPO4 ⋅2 H2O | 1.0 |
| DCPA | Dicalcium phosphate anhydrous | Monethite | CaHPO4 | 1.0 |
| OCP | Octacalcium phosphate | – | Ca8H2(PO4)6 ⋅5 H2O | 1.333 |
| HA, HAp, OHAp | Pentacalcium hydroxide triphosphate | Hydroxyapatite | Ca10(PO4)6 ⋅2 H2O | 1.667 |