Title: Ammonium Phosphotungstate
CAS Registry Number: 1311-90-6
CAS Name: Ammonium tungstophosphate
Additional Names: ammonium phosphowolframate
Molecular Formula: H12N3O40PW12
Molecular Weight: 2931.15
Percent Composition: H 0.41%, N 1.43%, O 21.83%, P 1.06%, W 75.26%
Line Formula: (NH4)3PO4.12WO3
Literature References: Prepn: Wu, J. Biol. Chem. 43, 189 (1920); Healy. Radiochim. Acta 2, 146 (1964).
Properties: Dihydrate, microcryst powder. Soly in water (20°): 0.15 g/l. Freely sol in fixed alkali hydroxide solns.
Use: As ion-exchanger. |