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Monomagnesium phosphate
Chemical compound / From Wikipedia, the free encyclopedia
Monomagnesium phosphate is one of the forms of magnesium phosphate. It is a magnesium acid salt of phosphoric acid with the chemical formula Mg(H2PO4)2. Di- and tetrahydrates are known also. It dissolves in water, forming phosphoric acid and depositing a solid precipitate of Mg(HPO4).3H2O, dimagnesium phosphate.[2]
Quick Facts Names, Identifiers ...
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Names | |
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Other names
Monomagnesium orthophosphate; Magnesium dihydrogen phosphate; Magnesium phosphate monobasic; Magnesium biphosphate; Acid magnesium phosphate | |
Identifiers | |
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.032.716 ![]() |
E number | E343(i) (antioxidants, ...) |
PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |
H4MgO8P2 | |
Molar mass | 218.277 g·mol−1 |
Appearance | White, odorless, crystalline powder |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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As a food additive, it is used as an acidity regulator and has the E number E343.