From: N prabagaran (nupraba$##$hotmail.com)
Date: Mon Feb 13 2006 - 13:41:57 EST
hey srini,
1. you can cool to -78 deg C by using ethylacetate/dry ice
2. you can cool to -60 deg C by using CHCl3/dry ice
use thermometer to check the temp.
if you want to run overnight reactions you should use cryocool bath
instrument.
cheers,
praba
Dr. Prabagaran N., Ph. D.
>>From: srinivas reddy <gounisrinivas$##$yahoo.com>
>>To: everybody$##$orglist.net
>>Subject: ORGLIST: reactions at -degrees temp
>>Date: Mon, 13 Feb 2006 07:39:47 -0800 (PST)
>>
>>hi,
>>
>>can anybody suggest how to do the reactions at minus
>>degree temperatures, for example (-70 degrees with dry
>>ice) but for long hours 3-4 hrs?.
>>
>>thanks in advance
>>
>>srinivas
>>
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