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yuanligege23

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[求助] 水浴蒸干 已有1人参与

最近做实验,有一项是水浴蒸干坩埚中的水分,不知要不要加盖子,我看了一下,加盖的话 盖子内部粘有煤样品,如果不盖,会不会有样品损失?不明白,加盖,样品怎么会跑上面去的,又没有沸腾,坩埚边也是干的,咋跑的?请赐教  还有水浴提取是什么意思
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yuanligege23: 金币+3, ★有帮助 2014-01-20 10:36:47
坩埚中的物质是煤吗?原煤吗?是不是烃挥发后在盖子上面凝结了
2楼2014-01-12 17:52:03
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