Characterization of Insoluble Monovalent K+, Tl+ and Ag+ Salts of 12-Tungstophosphoric Acid

M.R. Todorović; I. Holclajtner-Antunović; U.B. Mioč; D. Bajuk-Bogdanović

doi:10.4028/www.scientific.net/MSF.555.207

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HomeMaterials Science ForumMaterials Science Forum Vol. 555Characterization of Insoluble Monovalent K+, Tl+...

Characterization of Insoluble Monovalent K⁺, Tl⁺ and Ag⁺ Salts of 12-Tungstophosphoric Acid

Abstract:

The K3PW12O40, K2.5H0.5PW12O40, K2HPW12O40, KH2PW12O40, Ag3PW12O40 and Tl3PW12O40 salts were synthesized and characterized by thermal analysis, IR and impedance spectroscopy, and SEM. The physicochemical characterization of acid alkaline salts revealed the presence of biphasic mixtures of unreacted heteropoly acid and its neutral salt. The unreacted heteroply acid could be washed away by treating the acid salt with water.