Stan"nic(-nk), a. [L. stannum tin: cf. F. stannique.] (Chem.) Of or pertaining to tin; derived from or containing tin; specifically, designating those compounds in which the element has a higher valence as contrasted with stannous compounds.
Stannic acid. (a) A hypothetical substance, Sn(OH)4, analogous to silicic acid, and called also
normal stannic acid. (b) Metastannic acid. --
Stannic chloride, a thin, colorless, fuming liquid, SnCl4, used as a mordant in calico printing and dyeing; -- formerly called
spirit of tin, or
fuming liquor of Libavius. --
Stannic oxide, tin oxide, SnO2, produced artificially as a white amorphous powder, and occurring naturally in the mineral cassiterite. It is used in the manufacture of white enamels, and, under the name of
putty powder, for polishing glass, etc.
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