Cryoscopic studies on some Tungstates and Vanadates in Molten KNO 3 | Zendy

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Cryoscopic studies on some Tungstates and Vanadates in Molten KNO 3

Author(s) -

Hassanein M.

Publication year - 1973

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.19733990117

Subject(s) - chemistry , ion , inorganic chemistry , solvent , freezing point , analytical chemistry (journal) , thermodynamics , chromatography , organic chemistry , physics

The depression of the freezing point of molten KNO 3 , as solvent, was measured after the addition of small concentrations of the solutes: 1. WO 3 , K 2 WO 4 , K 2 W 2 O 7 and 2. V 2 O 5 , Cs 2 V 6 O 16 and Rb 2 V 6 O 16 . DTA‐apparatus was used in the measurements. The results showed that the investigated tungstates and vanadates were dissociated in the melt with the formation of monotungstate (WO 4 ) 2− and orthovanadate (VO 4 ) 3− ‐ions.

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