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Author: Subject: Drying CPME
dapper
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[*] posted on 19-8-2008 at 06:11
Drying CPME


I checked the chemical purifications manual for the compound cyclopentyl methyl ether CAS# 5614-37-9 for a technique to dry it. I plan on distilling it off of something like CaH2 but wasnt going to do it without seeing if anyone knew if this was a bad idea or knew the correct way to dry the aforementioned compound.

CPME: http://www.zeon.co.jp/business_e/enterprise/spechemi/spechem...

Thanks
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panziandi
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[*] posted on 23-8-2008 at 11:17


I expect using sodium, sodium amalgam, NaK etc would be suited for drying it. I don't see why CaH2 couldn't be used though.



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bfesser
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[*] posted on 23-8-2008 at 11:26


Did you try contacting Zeon to see what they recommend?
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dapper
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[*] posted on 24-8-2008 at 06:20


We're going to use sodium. It should be fine but if its catastrophic I won't be here to tell you :)
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[*] posted on 24-8-2008 at 13:57


I don't see it should be a problem, I use sodium foil for drying ethers, usually over night. CPME is a recommended alternative to diethyl ether and THF (according to sigmaaldrich) as it does not form peroxides so easily. As such I expect a drying with the likes of sodium should work a treat ;)



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