| Dicalcium phosphate | |
|---|---|
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| IUPAC name |
Calcium hydrogenphosphate
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| Other names | Calcium monohydrogen phosphate Phosphoric acid, calcium salt (1:1) |
| Identifiers | |
| CAS number | 7757-93-9  ,7789-77-7 (dihydrate) |
| PubChem | 104805 |
| Properties | |
| Molecular formula | CaHPO4 |
| Molar mass | 136.06 g/mol |
| Solubility in water | 0.02 g/100 mL |
| Hazards | |
| EU Index | Not listed |
| Flash point | Non-flammable |
| Related compounds | |
| Other anions | Calcium pyrophosphate |
| Other cations | Magnesium phosphate Monocalcium phosphate Tricalcium phosphate Strontium phosphate |
| (what is this?) (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Dicalcium phosphate, also known as calcium monohydrogen phosphate, is a dibasic calcium phosphate. It is usually found as the dihydrate, with the chemical formula of CaHPO4 • 2H2O, but it can be thermally converted to the anhydrous form. It is practically insoluble in water, with a solubility of 0.02 g per 100 mL at 25 °C. It contains about 23 percent calcium in its anyhydrous form, and is mainly used as a dietary supplement in prepared breakfast cereals, dog treats, enriched flour, and noodle products. It is also used as a tableting agent in some pharmaceutical preparations. It is used in poultry feed.
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