Vanadium Dioxide (VO2)-Powder

Characteristic

Vanadium(IV) oxide or vanadium dioxide is an inorganic compound with the formula VO₂. It is a dark blue solid. Vanadium(IV) dioxide is amphoteric, dissolving in non-oxidising acids to give the blue vanadyl ion, [VO]²⁺ and in alkali to give the brown [V₄O₉]²⁻ ion, or at high pH [VO₄]⁴⁻.

Chemical formula：VO₂

Molar mass：82.94 g/mol

Appearance：Blue-black powder

Density：4.571 g/cm³ (monoclinic)

               4.653 g/cm³ (tetragonal)

Melting point：1,967 °C

Magnetic susceptibility (χ)：+99.0·10⁻⁶ cm³/mol

Crystal structure：Distorted rutile (<70 °C, monoclinic)

                              Rutile (>70 °C, tetragonal)

Application

Vanadium dioxide stands out in the material world for its rapid and abrupt phase transition at a temperature of 68 °C. The electric conductivity of vanadium dioxide makes it have wide application potential in optical devices, electronic devices and optoelectronic devices.

VO2_MSDS.pdf