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Author: Subject: chemical drying
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[*] posted on 14-4-2010 at 12:12
chemical drying

A protocol calls for dry dichloromethane, I was wondering if that means just purging it with N2, or does it call for a wash with calcium chloride.

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[*] posted on 14-4-2010 at 12:26

A dry solvent most often implies that it is chemically dried before use. Calcium chloride is suitable for dichloromethane. Alkali metals are NOT.
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[*] posted on 16-4-2010 at 07:51

Storing over molecular seives or passing through activated alumina are the easiest & most effective ways to dry most solvents - DCM included.
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