: the dioxide SnO2 of tin that occurs in nature as cassiterite, is produced artificially as a crystalline powder when anhydrous, and is used chiefly in ceramic colors, in vitreous enamels and glazes as an opacifier, in glass, and in polishes — see stannic acid
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Chem.
a white, amorphous, water-insoluble powder, SnO2, used chiefly in the manufacture of ceramic glazes and glass, and of polishing powders for metal, glass, and marble. Also called tin ash.
[1840-50]
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stannic oxide,
a white powder found in nature as cassiterite and produced synthetically, used to glaze and color ceramics and glass, to polish glass and metal, and in making cosmetics. Formula: SnO2
Useful english dictionary. 2012.