搜索 - 科创

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由于一氧化碳与五氧化二碘反应能定量进行，也可以用碘量法对一氧化碳进行定量分析。析出的碘用硫代硫酸钠（Ｎａ２Ｓ２Ｏ３）标准溶液滴定，淀粉为指示剂，碘与淀粉变蓝，终点时蓝色消失。

　　　　反应的活化能　247. redox couple 　　　　　　氧化还原电对248. potassium permanganate 　　高锰酸钾　249. iodimetry　　　　　　　碘量法

优级纯及以上的溴酸钾KBrO3、碘酸钾KIO3还可以作为分析化学中的基准试剂，常用于碘量法中硫代硫酸钠溶液的标定；或者直接溶于水作为标准溶液。

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