Metalorthovanadates

Metalorthovanadates are a class of inorganic compounds with the general formula M3VO4, where M represents a metal cation. These compounds are salts of orthovanadic acid, H3VO4. The structure of metalorthovanadates depends on the specific metal and its oxidation state. Common examples include sodium orthovanadate (Na3VO4), potassium orthovanadate (K3VO4), and calcium orthovanadate (Ca3(VO4)2).

These compounds are typically crystalline solids that can exhibit a range of colors depending on the metal cation. Many metalorthovanadates are insoluble or sparingly soluble in water, though their solubility can vary. They can be synthesized through various chemical reactions, often involving the reaction of a metal oxide or hydroxide with vanadium pentoxide or a vanadate salt in an aqueous or molten state.

Metalorthovanadates find applications in several fields. For instance, some are used as catalysts in chemical reactions, particularly in oxidation processes. Others have been investigated for their potential use in phosphors and as components in certain types of glasses and ceramics. Their magnetic and optical properties are also subjects of ongoing research, which could lead to new technological applications. The stability and reactivity of metalorthovanadates are influenced by the nature of the metal cation and the surrounding chemical environment.