Date: Thu, 6 Apr 2006 10:47:52 -0400
Reply-To: ILPI <info**At_Symbol_Here**ILPI.COM>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: ILPI <info**At_Symbol_Here**ILPI.COM>
Subject: Re: Steam at Chemistry Bench and FH
In-Reply-To: <001d01c65981$7edace80$27fea8c0**At_Symbol_Here**HERA.COM>

>Are there good, safe alternatives to steam outlets in fume hoods and at
>student benches for heating volatile chemicals?  Does anyone still use
>steam?  We are renovating an old chemistry building and considering removing
>a poorly performing steam system.  What would you suggest?
>Janet S. Baum, AIA, ACS DivCHAS
>Health, Education + Research Associates, Inc.
>Saint Louis, MO

I discuss laboratory heating methods here:

No mention of steam, as it is rather archaic.   As discussed in my 
write-up, all heating methods have inherent dangers, so it's a matter 
of balancing the risk.

  As a former chemistry professor, I'd say you want to train your 
students to use what real chemists use in the real world.  And in my 
experience that is heating mantles with proportional voltage 

If you had the money (at an academic institution...HAHAHAHAHAHA, good 
one, Rob), the fume hood installations would be "explosion proof" as 
they are in (state of the art) industry.  For example, all electrical 
contacts/controls on the outside of the hood, air-driven stirrer 
systems rather than electric motor-driven magnetic stirrers etc. etc.

Gee, I need to add that last paragraph to my write-up, don't I?

Rob Toreki
Safety Emporium - Lab & Safety Supplies featuring brand names
you know and trust.  Visit us at
esales**At_Symbol_Here**  or toll-free: (866) 326-5412
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