Crossword clues for stannic
The Collaborative International Dictionary
Stannic \Stan"nic\ (-n[i^]k), 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 hypothetical substance, Sn(OH)4, analogous to silicic acid, and called also normal stannic acid.
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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.
Douglas Harper's Etymology Dictionary
"containing tin," 1790, from Modern Latin stannum, from Late Latin stannum "tin" (earlier "alloy of silver and lead"), a scribal alteration of Latin stagnum, probably from a Celtic source (compare Irish stan "tin," Cornish and Breton sten, Welsh ystaen). The Latin word is the source of Italian stagno, French étain, Spanish estaño "tin."
Wiktionary
a. (context chemistry English) Containing tetravalent tin.
WordNet
adj. of or relating to or containing tin [syn: stannous]
Usage examples of "stannic".
Tin in solution as stannic or stannous chloride is precipitated as metal by means of zinc.
The reduced metal is only slowly dissolved by hydrochloric acid, and although it is readily soluble in aqua regia, the solution cannot be evaporated or freed from the excess of acids, by boiling, without loss of tin, because of the volatility of stannic chloride.
The white of the glaze makes me think--as a guess--that it's a stannic oxide compound.