Molten potassium thiocyanate: reactions with compounds of vanadium

Abstract

The reaction of 12 compounds of vanadium-(V),-(IV), and -(III) were studied in pure molten potassium thiocyanate and in thiocyanate melts containing oxide, sulphide, and cyanate ions. While vanadium(III) compounds were stable only in vacuo those of vanadium(IV) were stable either in the presence or absence of air. The vanadium(V) compounds were either reduced to vanadium(IV) or had one or more oxygen atoms replaced by sulphur, the balance between these alternative reactions being easily altered by comparatively small changes in temperature or melt composition.