Sodium stannate is the inorganic compound AND metalic Salts 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.
Sodium stannate trihydrate is the inorganic compound with the formula Na2SnO3.3H2O.This colourless salt forms upon dissolving metallic tin or tin(IV) oxide in sodium hydroxide.