Calcium dihydrogen phosphate (also called mono-calcium orthophosphate) Ca(H2PO4)2 is a chemical compound.
Decomposes at 203 °C. The common Ca(H2PO4)2•H2O releases a water molecule before it melts at 109 °C.
Uses
Fertilizer
Phosphorus is an important plant nutrient and so is a common component of fertilizers. Phosphate rock, Ca3(PO4)2 is available but is too insoluble to be an efficient fertilizer. Therefore it is frequently converted into the more soluble calcium dihydrogen phosphate, generally by the use of sulfuric acid H2SO4, the result is hydrated to turn the calcium sulfate in to the dihydrate gypsum and sold as "superphosphate of lime" spreading manure, an organic fertilizer Fertilizers or fertilisers are compounds given to plants with the intention of promoting growth; they are usually applied either via the soil, for uptake by plant roots, or by foliar spraying, for uptake through leaves. ... Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. ... Gypsum is a very soft mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. // Chemical structure Heating gypsum to between 100°C and 150°C (302°F) partially dehydrates the mineral by driving off exactly 75% of the water contained in its chemical structure. ...
Alternately phospate rock may be treated with phosphoric acid to produce a purer form of calcium dihydrogen phosphate and is sold as "triple phosphate".
Ca3(PO4)2 + 4 H3PO4 → 3 Ca(H2PO4)2
Leavening Agent
Monocalcium Phosphate is also used in the food industry as a Leavening agent to cause baked goods to rise. A leavening agent is an organism or substance used in baked goods that causes them to rise. ...
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