Vanadium dioxide is blue dark crystal powder. It is also known as vanadium(IV) oxide. VO2 is M phase, which is a kind of phase-change material. It can resist infrared ray, so it is for smart glass or film that reducing temperature in room. Vanadium pentoxide and vanadium trioxide are the raw material.Vanadium(IV) Oxide PowderVanadium OxideVO2 99%Vanadium(IV) Oxide 1um 99%Vanadium DioxideCAS No.:12036-21-4EINECS No.:234-841-1Molecular Formula:VO2Molecular Weight:82.94Melting Point:1640℃Density:4.234 ApplicationsVO2 is raw material for temperature control glass. It could resist infrared ray. At same time vanadium(IV) oxide is colorant for glass and ceramics.