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zi ran jie ruan shui bian ying de mo ni shi yan she ji
Pages: 14-15
Year: Issue:  2
Journal: Education in Chemistry

Keyword:  硬水软水大理石普通玻璃;
Abstract: 在蒸馏水等软水中放人少许干净的大理石等地表物质后振荡或加热片刻,软水就会慢慢变成硬水,本文还介绍了选用酚酞指示剂来验证硬水的简易方法及该方法的基本原理.
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