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star8008

新虫 (初入文坛)

[求助] 碘化钾怎样精制

我需要碘化钾配制成碘化钾饱和溶液测油脂的过氧化值,但发现买来的粉末状碘化钾,颜色有点红,可能是时间放长氧化了,对测定有很大的影响,这样的碘化钾还可以配制成溶液试验吗?不行的话,怎样处理后可以使用???谢谢!就是想问这种变色的碘化钾要怎么处理才可以使用?
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liguanxia007

木虫 (小有名气)

小木虫

【答案】应助回帖

感谢参与,应助指数 +1
zhonggao18(金币+1): 感谢回帖 2012-02-23 19:25:11
应该可以用,滴定完后用硫代硫酸钠进行反滴定,计算碘化钾滴定液中有效率有多高。就可以计算脂的过氧化值
舍得寻找平衡
2楼2012-02-23 14:11:24
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