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Subject: Re: [DCHAS-L] Certasin toxic chemical reporting requirement
Date: February 16, 2012 9:32:21 AM EST
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From: "Brian T. Mars" <bmars**At_Symbol_Here**CARLETON.EDU>
Subject: Re: [DCHAS-L] A lesson learned about oxygen bomb calorimetry
Date: February 16, 2012 10:43:46 AM EST
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <FAA5E76A77B37C43BB4A038C8A1D6B652DF0BF82**At_Symbol_Here**exmbx4.ex.ad3.ucdavis.edu>


The .pdf states the bomb was charged to "5 psi".  My old 1950 bomb is charged to 25 atm.  Is there a mistake or has the procedure changed?

From: "Debbie M. Decker" <dmdecker**At_Symbol_Here**UCDAVIS.EDU>
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Sent: Wednesday, February 15, 2012 5:40:46 PM
Subject: [DCHAS-L] A lesson learned about oxygen bomb calorimetry

Hi:

 

I've posted my report of this incident at http://ucih.ucdavis.edu/docs/ll_CalorimeterFailure.pdf for your reviewing pleasure.  The listserv chokes on embedded images.

 

This was a very near miss and thankfully, no one was injured.  If your chemistry/chemical engineering/materials science folks use this technique (and it's a pretty classic one), it would be good to follow up with them about routine maintenance on the bomb vessel.  Don't forget undergraduate teaching, where it's taught in p-chem lab.

 

Ya'll be safe out there,

Debbie

-------------------------

 

Debbie M. Decker, Campus Chemical Safety Officer
Environmental Health and Safety
University of California, Davis
1 Shields Ave.
Davis, CA  95616
(530)754-7964/(530)681-1799 (cell)

(530)752-4527 (FAX)
dmdecker**At_Symbol_Here**ucdavis.edu
Co-Conspirator to Make the World A
Better Place -- Visit www.HeroicStories.com and join the conspiracy

 

 


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