From: will jones (willjones46$##$hotmail.com)
Date: Mon Feb 13 2006 - 11:01:05 EST
In a thermos flask, (the flask for coffee)
If you need to continually cool a large flask, then dry ice in acetone
insulated with glass wool would do the trick.
>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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