双色球红蓝走势图

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石墨坩埚怎么清洗作用更好

发布时间:2019-09-10 09:57:58 浏览:91次

石墨坩埚的清洗首要进行的工作是将坩埚内的化学物质整理出来,然后进行清洁,我们需求根据石墨坩埚内的残余物质是什么来决定用什么东西来清洗,一般石墨坩埚上的附着物是无机燃烧后的残渣,我们能够运用盐酸来进行整理,大多数都是能够溶的,一些含有碳成分的残留物,运用盐酸是不能溶解的的,这时能够运用硝酸进行清洗,由于硝酸具有强氧化性,在清洗时也能够恰当加热。

石墨坩埚怎么清洗作用更好

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