Dicalcium phosphate

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Dicalcium phosphate
IUPAC name Calcium hydrogenphosphate
Other names Calcium monohydrogen phosphate
Identifiers
CAS number [7757-93-9]
PubChem 104805
SMILES O.O.OP(=O)([O-])[O-].[Ca+2]
Properties
Molecular formula CaH5O6P
Molar mass 172.088
Solubility in water 0.02 g/100 mL
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and 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, enriched flour, and noodle products. It is also used as a tableting agent in some pharmaceutical preparations. It is used as a feed for poultry.