Melting Point of Common Phosphates
The melting points of phosphates can vary depending on the specific compound and its composition. The table below provides a comprehensive list of melting point values for various phosphates at 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)
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| Ammonium dihydrogen phosphate (H6NO4P) | 190 |
| Calcium dihydrogen phosphate (CaH4P2O8) | 109 |
| Calcium phosphate (Ca3(PO4)2) | 1670 |
| Sodium dihydrogen phosphate (NaH2PO4) | 200 (decomposes) |
| Sodium hydrogen phosphate (Na2HPO4) | 250 (decomposes) |
| Trisodium phosphate (Na3PO4) | 1583 |
| Potassium dihydrogen phosphate (KH2PO4) | 253 |
| Potassium hydrogen phosphate (K2HPO4) | > 465 (decomposes) |
| Potassium phosphate (K3PO4) | 1340 |
| Iron(III) phosphate (FePO4) | 250 (decomposes) |
| Aluminum phosphate (AlPO4) | 1800 |
| Magnesium phosphate (Mg3(PO4)2) | 1184 |
| Zinc phosphate (Zn3(PO4)2) | 900 |
| Lead(II) phosphate (Pb3(PO4)2) | 1014 |
| Bismuth(III) phosphate (BiPO4) | > 350 |
Related Tables
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. Netherlands: Elsevier Science, 2015. 4) Occupational Safety and Health Administration (OSHA): The National Institute for Occupational Safety and Health (NIOSH).