Stannic Oxide

Name:
Stannic Oxide
Detailed information:

Chemistry name:	stannic anhydride; tin peroxide; tin dioxide; stannic acid
M Formula:	SnO2 or SnO2•xH2O
Properties:
White powder; anhydrous or containing variable amounts of water. D 6.6–6.9, mp 1127C, sublimes at 1800–1900C. Soluble in concentrated sulfuric acid, hydrochloric acid; insoluble in water. Noncombustible.
Derivation:
(1) Found in nature as in the mineral cassiterite; (2) precipitated from stannic chloride solution by ammonium hydroxide.
Grade:
White, pure; white; gray; CP.
Use:
Tin salts; catalyst; ceramic glazes and colors; putty; perfume preparations and cosmetics; textiles (mordant, weighting); polishing powder for steel, glass, etc.; manufacture of special glasses.