一种电子级超高纯碘的制备方法
申请公布号:CN104724675A
申请号:CN201310733294.4
申请日期:2013.12.23
申请公布日期:2015.06.24
发明人:陈曙
分类号:C01B7/14(2006.01)I
主分类号:C01B7/14(2006.01)I
代理人:李蕊
地址:300000 天津市津南区咸水沽镇工业园区兴园路11号
摘要:本发明提供了一种电子级超高纯碘的制备方法,具体步骤为:(1)取碘放入三口烧瓶中,封闭加热至115-125℃,待碘融化后用三层玻璃布过滤,滤液熔融状态下保温并加入浓硫酸搅拌3-10分钟,其中,所述碘与浓硫酸的质量体积比按g/ml计为5∶0.5-2;(2)降温冷却结晶,分离出碘;(3)将碘分出后加热至130℃进行升华提纯操作,即得;所述制备方法操作简单,可所得纯度在99.99%以上的电子级超高纯碘试剂,尤为适合电子行业生产需求,适合规模化工业生产的需要。
主权项:一种电子级超高纯碘的制备方法,其特征在于:具体制备步骤如下:(1)取碘放入三口烧瓶中,封闭加热至115‑125℃,待碘融化后用三层玻璃布过滤,滤液熔融状态下保温并加入浓硫酸搅拌3‑10分钟,其中,所述碘与浓硫酸的质量体积比按g/ml计为5:0.5‑2;(2)降温冷却结晶,分离出碘;(3)将碘分出后加热至130℃进行升华提纯操作,即得。
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