Table 2.
Mineral composition of commercial dicalcium phosphate (DCP) and monocalcium phosphate (MCP)1)
| Component (%) | Chemical formula | DCP | MCP |
|---|---|---|---|
| Calcium carbonate | CaCO3 | 6.74 | 6.00 |
| DCP and MCP | |||
| MCP | Ca(H2PO4)2·H2O | 14.19 | 60.98 |
| DCP | CaHPO4 | 26.42 | 12.54 |
| Dihydrated DCP | CaHPO4·2(H2O) | 34.65 | - |
| Others | |||
| Phosphoric acid | H3PO4 | 0.80 | 1.00 |
| Silica | SiO2 | 0.15 | 0.13 |
| Calcium fluoride | CaF2 | 0.32 | 0.44 |
| Sodium phosphate | NaH2PO4·2(H2O) | 0.54 | 0.61 |
| Free water | H2O | 0.80 | 1.00 |
| Aluminum phosphate | AlPO4 | 2.21 | 2.48 |
| Ferrous phosphate | FePO4·2(H2O) | 2.65 | 2.98 |
| Calcium sulfate | CaSO4·H2O | 3.51 | 3.95 |
| Magnesium phosphate | Mg(H2PO4)2·4(H2O) | 7.02 | 7.89 |
| Total | 100.00 | 100.00 | |
1)
Adapted from [19].