Characteristic

Vanadyl(IV) sulfate describes a collection of inorganic compounds of vanadium with the formula , VOSO₄(H₂O)x where 0≤x≤6. The pentahydrate is common. This hygroscopic blue solid is one of the most common sources of vanadium in the laboratory, reflecting its high stability. It features the vanadyl ion, VO²⁺, which has been called the "most stable diatomic ion.Vanadyl sulfate is an intermediate in the extraction of vanadium from petroleum residues, one commercial source of vanadium.

Chemical formula:H10O₁₀SV

Molar mass: 253.07 g/mol

Appearance: Blue solid

Melting point: 105 °C (221 °F; 378 K) decomposes

Solubility in water:Soluble

  

Application

 

Vanadium(IV) sulfate oxide hydrate is used as a catalyst for the oxidative aromatization of cyclohexenone. It is also used as a component in some food supplements. It is one of the intermediate during the extraction of vanadium from petroleum residues.