High purity Tin Oxide 99.4+% (Stannic Oxide) SnO2 produced from tin metal and is an inert white powder, comprising aggregates of spherical primary particles. Non-flammable. Specific gravity 6.99. Primarily used as a polishing compound and in ceramics. Wet with a small amount of water, Tin Oxide forms a paste that can be used to produce a fantastically fine finish to precious metals and precision optical components. It is also used to make other Tin compounds for electroplating, etc. Tin oxides also offer versatility to ceramics and is stable at high temperatures. Dependable and widely used as a glaze opacifier. Tin oxide has a refractory effect on glazes and can increase craze resistance. Chemically inert, its application in ceramics allows for a wide range of colors and characteristics. Tin oxide is highly (chemically and thermally) stable material. Its inertness is the reason for its environmentally friendly and non-toxic profile. Will arrive in a vacuum sealed heavy duty bag.