Sodium stannate is the inorganic compound with the formula na2sn(oh)6. This colourless salt forms upon dissolving tin or tin dioxide in sodium hydroxide. Sodium stannate is used as a stabiliser for hydrogen peroxide. [formula] Na2sno3.3h2o [cas registry number] 12027-70-2 [synonyms] Disodium tin hexahydroxide. [appearance] Sodium stannate comes in the form of white crystals. [solubility] Sodium stannate is soluble in water but not soluble in ethyl alcohol and acetone. [uses] The sodium stannate is used for the production of tin based compunds and for the Stabilization of peroxides. Sodium stannate is also used for tin surface treatment