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Preparation |
Monobasic calcium phosphate may be prepared in the laboratory by the reaction of calcium carbonate with phosphoric acid: CaCO3 + 2H3PO4 → Ca(H2PO4)2 + CO2 + H2O Fertilizer grade product is obtained by pulverized phosphate rock (tricalcium phosphate) in phosphoric or sulfuric acid and evaporating the solution. |
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General Description |
Calcium phosphate monobasic monohydrate is mainly used in the manufacture of fertilizers and as an acidulant in food industry. Aqueous solution of calcium phosphate monobasic monohydrate (MCPM) mixed with α-tertiary calcium phosphate forms dicalcium phosphate dihydrate cement. It is also used in composing brushite cement. |
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Agricultural Uses |
Apatite treated with sulphuric acid gets converted to mono calcium dihydrogen phosphate [Ca(H2PO4)2] which is called superphosphate. Calcium dihydrogen phosphate is more water-soluble than apatite. |
InChI:InChI=1/Ca.2H3O4P.H2O/c;2*1-5(2,3)4;/h;2*(H3,1,2,3,4);1H2/q+2;;;/p-2