We are offering pure form of Potassium Stannate having molecular formula K2SnO3•3H2O or K2Sn(OH)6. The Potassium Stannate is white to off-white in colour. It finds application in synthesizing chemicals in diverse industries including as salt in Alkaline Tin Plating Electrolyte. Potassium Stannate is Used in Plating of Bi-Metal Bearings, Pistons, Fire Retardant Clothes, Cosmetics etc.
Characteristic Required Extra Pure Grade
Insoluble matter, % by mass, Max. 0.25 0.25
Stannite (as Sn), % by mass, Max. 0. 1 0.1
Soluble as Sn % by mass, Max. 38.0 38.5+
Free Alkali % by mass, Max. 6.0(as KOH) 1.5(as KOH)
Lead as Pb % by mass, Max. 0.05 0.01