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Topic: drying anisole  (Read 7090 times)

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Offline geneworld

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drying anisole
« on: January 07, 2008, 02:30:06 PM »
hi! I am trying to dry anisole about 200ml for reactions. I use sodium / benzophenone. but problem is at a high temp. sodium melts and its really difficult to distill it at a low pressure with sodium still inside the flask. can anybody help me by providing a good procedure to dry and distill anisole? :'(
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Offline Kryolith

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Re: drying anisole
« Reply #1 on: January 07, 2008, 02:49:24 PM »
I guess you need very pure anisole. I would try to use calcium hydride, as it is a very effective drying agent, that doesn't melt. Refluxing for 3-4 h should be enough.
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Offline Butyllithium

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Re: drying anisole
« Reply #2 on: January 08, 2008, 03:15:13 AM »
Anisole Mp.184.4C/760mm. How about distillation under reduced pressre?
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