Nomenclature
CAS number: 7784-30-7
Phosphoric acid aluminum salt (1:1); aluminum orthophosphate.
AlO
4P; mol wt 121.95.
Al 22.13%, O 52.48%, P 25.40%.
AlPO
4.
Description and references
Occurs in nature as the minerals angelite; coeruleolactite; evansite; lucinite; metavariscite; sterretite; variscite; vashegyite; wavellite; zepharovicht. Prepn from NaAlO2 and H3PO4: Becher in Handbook of Preparative
Inorganic Chemistry vol. 1, G. Brauer, Ed.
(Academic Press, New York, 2nd ed., 1963) p 831.
Properties
White, infusible powder. mp
>1460°; d23 2.56. Practically insol in water
or acetic acid. Very slightly sol in concentrated hydrochloric acid
and nitric acid. Isomorphous with quartz.Derivative
Aluminum phosphate gel.
Nomenclature
Fosfalugel (Yamanouchi); Phosphaljel (Am. Home); Phosphalugel (Yamanouchi). Properties
White, viscous suspension from which small amounts
of water separate on standing.Use
As cement in admixture with calcium sulfate and
sodium silicate; as flux for ceramics; dental cements; for special
glasses.
Therapeutic Category
Antacid.
Keywords
Antacid