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四川某金矿为了提高产品金的成色,将粗金以王水溶解,除去多余的酸后,用氨水沉淀金进行纯化,在焙烧所沉淀出的金时,发生剧烈爆炸,造成严重的人伤事故.产生这次爆炸事故的原因为:一、“雷金”受热干燥引起爆炸.据Б.В.Некрасв著,北京大学化学系无机化学教研室译,普通化学教程,744页记载,“当氨作用于三价金的化合物时,生成组成不定的土黄色沉淀,在干燥的状态下具有剧烈的爆炸性.”陈寿椿编,上海科学技术出版社的重要无机化学反应,646页指出:“氨溶液与金化合物溶液作用时,有黄色‘雷金’沉淀生成,这个化合物可以Au_2O_3·3NH_3+NH(ClNH_2Au)_2的形式表示,但其确切的组成则尚未完全了解.这个干燥的化合物倘予加热或予撞击,将引起
A gold mine in Sichuan in order to improve the quality of gold products, the crude gold dissolved in aqua regia to remove excess acid, the ammonia precipitation of gold purification, precipitation of gold in the roasting, the occurrence of a violent explosion, causing serious injuries The reason for the explosion was as follows: First, “Lejin” was heated and dried and exploded.According to Б.В.Некрасв, Peking University Department of Chemistry Department of Inorganic Chemistry translated, General Chemistry Course, 744 pages, “When ammonia Acting on the trivalent gold compounds, the formation of indeterminate khaki precipitate, in the dry state has a dramatic explosive. ”Chen Shou Chun compiled, Shanghai Science and Technology Press important inorganic chemical reaction, 646 pages:" ammonia solution and Gold compound solution, the yellow ’Leijin’ precipitation generated, this compound can Au_2O_3 · 3NH_3 + NH (ClNH_2Au) _2 of the form, but its exact composition is not yet fully understood. The dry compound if heated or to give Hit, will cause