Monomagnesium phosphate

From Wikipedia, the free encyclopedia
  (Redirected from Mg(H2PO4)2)
Jump to navigation Jump to search
Monomagnesium phosphate[1]
Magnesium phosphate monobasic.png
Names
Other names
Monomagnesium orthophosphate;
Magnesium dihydrogen phosphate;
Magnesium phosphate monobasic;
Magnesium biphosphate;
Acid magnesium phosphate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.032.716
Properties
H4MgO8P2
Molar mass 218.28 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).
☒N verify (what is ☑Y☒N ?)
Infobox references

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]

As a food additive, it is used as an acidity regulator and has the E number E343.

References[edit]

  1. ^ Monomagnesium phosphate, FAO JECFA Monographs 5 (2008)
  2. ^ Klaus Schrödter; Gerhard Bettermann; Thomas Staffel; Friedrich Wahl; Thomas Klein; Thomas Hofmann (2008). Phosphoric Acid and Phosphates. Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_465.pub3.