Investigation of the Mechanism of Decomposition of Artificial Scheelite in Nitric Acid
ESHMURAT A. PIRMATOV
Uzbek Plant of High-Melting and Heat-Proof Metals, Ul. V. Khaydarova 1, Tashkent Region, Chirchik 702119 (Uzbekistan)
Pages: 635-638
Abstract
The mechanism of decomposition of artificial scheelite in nitric acid is investigated by recording the curves of anodic charging. This method involves fixation of temporal changes in the potential of platinum electrode in reaction medium. It is established that the reaction between artificial scheelite and nitric acid is not a solid-phase process but a usual exchange reaction in aqueous medium with the dissolution of scheelite and formation of precipitate which is tungsten trioxide monohydrate.
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