StannateIV

Stannate(IV) refers to the anion containing tin in its +4 oxidation state, typically represented by the general formula [Sn(OH)6]2- or similar species where oxide or other ligands are involved. These compounds are derived from the hypothetical stannic acid, H2Sn(OH)6. Stannates(IV) are generally soluble in alkaline solutions.

In aqueous chemistry, stannates(IV) are often encountered in solutions of tin(IV) salts that are made alkaline. The precise composition of the stannate species in solution can be complex and depend on factors such as pH, concentration, and the presence of other ions. Commonly encountered stannate(IV) ions include hexahydroxostannate(IV), [Sn(OH)6]2-.

Many metal stannates(IV) are known, such as sodium stannate(IV), Na2Sn(OH)6, and potassium stannate(IV), K2Sn(OH)6. These compounds can be prepared by reacting tin(IV) oxide with strong alkali solutions. Stannates(IV) have found applications in various industrial processes. For example, sodium stannate(IV) is used as a mordant in dyeing textiles and as a component in ceramic glazes. They can also serve as precursors for the synthesis of other tin-containing materials. The stability of stannates(IV) is generally high due to the +4 oxidation state of tin.