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如何对过滤后的固体物质进行洗涤
更新时间: 2020-11-08 00:00:00  

一般不需要洗涤。只有过滤后滤液仍然浑浊时需要进行二次过滤。粗盐过滤后要得到的是滤液,因为食盐是溶于水的,只有滤液澄清了才会进行下一步蒸发结晶,才能得到固体食盐。食盐是否干净只能在过滤时观察滤液是否澄清,固体食盐是看不出来的。

关键词: 如何 过滤 固体 物质 进行 洗涤

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