From: A De (ocad$##$mahendra.iacs.res.in)
Date: Fri Jan 18 2002 - 01:50:11 EST
Calcutta, 18th January 2002
Why don't you try an over pressure valve with liquid paraffin.
Professor Asish De
Dept. of Organic Chemistry
Indian Association for the Cultivation of Science
Calcutta -700 032
On Thu, 17 Jan 2002, Michael Engel wrote:
> I am an organic chemist and, until some years ago, I used mercury valves as
> an overpressure valve when doing synthesis under an inert atmosphere.
> During the last years, I didn't have to use such overpressure valves.
> Now I am back and I want/have to to use some other types of valves.
> What do use in your country, are Hg valves still in use ?
> Thanks for any advice.
> Best wishes
> Michael Engel
> ORGLIST - Organic Chemistry Mailing List
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> List coordinator: Joao Aires de Sousa (jas$##$mail.fct.unl.pt)
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