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冷雪寒嘻嘻

银虫 (小有名气)

[求助] 鉴别氯与碘离子 已有2人参与

各位大师,请问如何分离氯离子和碘离子,又不造成碘的损失,且能鉴别各自的存在??
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桂14130

新虫 (小有名气)

【答案】应助回帖

感谢参与,应助指数 +1
把碘氧化萃取再还原。

发自小木虫Android客户端
2楼2015-09-02 19:23:59
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longyi706565

金虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
鉴别:先加硝酸银生产白色沉淀,再加稀硝酸,沉淀不消失
碘离子:加硝酸银生产黄色沉淀
3楼2015-09-03 09:27:31
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冷雪寒嘻嘻

银虫 (小有名气)

引用回帖:
3楼: Originally posted by longyi706565 at 2015-09-03 09:27:31
鉴别:先加硝酸银生产白色沉淀,再加稀硝酸,沉淀不消失
碘离子:加硝酸银生产黄色沉淀

当碘少量与氯共存时,此法行不通
独乐乐不如众乐乐
4楼2015-09-09 15:16:28
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