翻訳と辞書 Words near each other ・ Sodium dodecyl sulfate ・ Sodium dodecylbenzenesulfonate ・ Sodium erythorbate ・ Sodium ethoxide ・ Sodium ethyl xanthate ・ Sodium ferric gluconate complex ・ Sodium ferrioxalate ・ Sodium ferrocyanide ・ Sodium ferulate ・ Sodium fluoride ・ Sodium fluoride/malic acid ・ Sodium fluoroacetate ・ Sodium fluorosilicate ・ Sodium formate ・ Sodium fumarate ・ Sodium fusion test ・ Sodium germanate ・ Sodium gluconate ・ Sodium hexachloroplatinate ・ Sodium hexafluoroaluminate ・ Sodium hexafluorophosphate ・ Sodium hexametaphosphate ・ Sodium hyaluronate ・ Sodium hydride ・ Sodium hydrosulfide ・ Sodium hydroxide ・ Sodium hypochlorite ・ Sodium hyponitrite ・ Sodium hypophosphite ・ Sodium in biology 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 Sodium fusion test ： ウィキペディア英語版 Sodium fusion test The sodium fusion test is used in elemental analysis for the qualitative determination of the presence of halogens, nitrogen and sulfur in a sample. It was developed by J. L. Lassaigne. The test involves heating the sample strongly with clean sodium metal, "fusing" it with the sample. A variety of techniques has been described. The "fused" sample is plunged into water, and the usual qualitative tests are performed on the resultant solution for the respective possible constituents.〔 ==Theory== It is a general test for the detection of halogens, nitrogen and sulfur in an organic compound. These elements are covalently bonded to the organic compounds. In order to detect them, these have to be converted into their ionic forms. This is done by fusing the organic compound with sodium metal. The ionic compounds formed during the fusion are extracted in aqueous solution and can be detected by simple chemical tests. The extract is called sodium fusion extract or Lassaigne's extract. When an organic compound is heated strongly with sodium, any halogens, nitrogen, and sulfur will be converted into inorganic sodium salts such as sodium halide (for halides), sodium cyanide (for nitrogen), sodium sulfide (for sulfur), and sodium thiocyanate (for sulfur and nitrogen).The nitrogen is confirmed with ferrous sulfate i.e. iron sulfate. 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「Sodium fusion test」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.