翻訳と辞書 Words near each other ・ Potassium cyanide ・ Potassium deficiency ・ Potassium deficiency (plants) ・ Potassium dichromate ・ Potassium dideuterium phosphate ・ Potassium dimanganate(III) ・ Potassium dithionite ・ Potassium erythorbate ・ Potassium ethoxide ・ Potassium ethyl xanthate ・ Potassium feldspar ・ Potassium ferrate ・ Potassium ferricyanide ・ Potassium ferrioxalate ・ Potassium ferrocyanide ・ Potassium fluoride ・ Potassium fluoride on alumina ・ Potassium formate ・ Potassium fulminate ・ Potassium fumarate ・ Potassium gluconate ・ Potassium heptafluorotantalate ・ Potassium hexachloroplatinate ・ Potassium hexacyanochromate(III) ・ Potassium hexafluorocuprate(III) ・ Potassium hexafluoronickelate(IV) ・ Potassium hexafluorophosphate ・ Potassium humate ・ Potassium hydride ・ Potassium hydrogen phthalate Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Potassium fluoride ： ウィキペディア英語版 Potassium fluoride |Section2= |Section3= |Section7= |Section8= }} Potassium fluoride is the chemical compound with the formula KF. After hydrogen fluoride, KF is the primary source of the fluoride ion for applications in manufacturing and in chemistry. It is an alkali halide and occurs naturally as the rare mineral carobbiite. Solutions of KF will etch glass due to the formation of soluble fluorosilicates, although HF is more effective. ==Preparation== Potassium fluoride is prepared by dissolving potassium carbonate in excess hydrofluoric acid. Evaporation of the solution forms crystals of potassium bifluoride. The bifluoride on heating yields potassium fluoride: : K2CO3 + 4HF → 2KHF2 + CO2↑ + H2O : KHF2 → KF + HF↑ The salt must not be prepared in glass or porcelain vessels as HF and the aqueous solution of KF corrode glass and porcelain. Heat resistant plastic or platinum containers may be used. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Potassium fluoride」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.