Some Properties of the Oxides of Vanadium and Their Compounds

Abstract
Vanadium tetroxide and vanadium pentoxide were prepared and some of their physical properties were measured. A brief survey was then made of some of their binary oxide compounds. Various mixtures of V2O4 or V2O6 and BeO, MgO, CaO, SrO, BaO, Al2O3, SiO2, TiO2, CeO2, ZrO2, Nb2O6, and U3O8 were heated. When compounds were formed, some of their properties were determined. Refractoriness, thermal expansion, and optical properties were considered of special interest. Vanadium pentoxide was found to have a linear thermal expansion of only 0.63 × 10−6 per °C. from 30° to 450°C.

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