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Previous by Date: Subject: Steam at Chemistry Bench and FH Date: Thu, 6 Apr 2006 08:53:33 -0500 Author: Janet Baum |
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>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: http://www.ilpi.com/inorganic/glassware/ 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 controllers. 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 http://www.SafetyEmporium.com esales**At_Symbol_Here**safetyemporium.com or toll-free: (866) 326-5412 Fax: (859) 523-0606, 4905 Waynes Blvd, Lexington, KY 40513-1469
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