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fluosilicic acid

[floo-oh-si-lis-ik, floo-] /ˈflu oʊ sɪˈlɪs ɪk, ˌflu-/
noun, Chemistry
an unstable acid, H 2 SiF 6 , known only in its colorless, poisonous, fuming aqueous solution or in the form of its salts: used chiefly as a wood preservative, a disinfectant, and as a hardening agent in the manufacture of ceramic ware, cement, and concrete.
Origin of fluosilicic acid Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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