5683. Magnesium Phosphate, Tribasic

Nomenclature

CAS number: 7757-87-1
“Neutral” magnesium phosphate; tertiary magnesium phosphate; trimagnesium phosphate.
Mg3O8P2; mol wt 262.86.
Mg 27.74%, O 48.69%, P 23.57%.
Mg3(PO4)2.

Description and references

Octahydrate occurs in nature as the mineral bobierrite.

Derivative

Pentahydrate.

Properties

White, cryst powder. Loses last mol of water at ≈400°. Insol in water; sol in dil mineral acids.

Therapeutic Category

Antacid.

Keywords

Antacid