Date: Wed, 7 Dec 2011 11:07:36 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Sender: DCHAS-L Discussion List <dchas-l**At_Symbol_Here**med.cornell.edu>
From: Allen Niemi <anniemi**At_Symbol_Here**MTU.EDU>
Subject: Re: Isovaleryl chloride odor control
X-To: DCHAS-L
In-Reply-To: <1B4D1665F78352429F7714A6540EB0360769C853**At_Symbol_Here**MBXE-01.exchange.cornell.edu>


-----------------------------------------
Allen Niemi, PhD
Director
Occupational Safety and Health Services
Rm 322 Lakeshore Center
Michigan Technological University
Houghton, Michigan 49931
Office: 906-487-2118
Fax: 906-487-3048
anniemi**At_Symbol_Here**mtu.edu


----- Original Message -----
From: "Ralph B Stuart" <rstuart**At_Symbol_Here**CORNELL.EDU>
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Sent:Wednesday, December 7, 2011 8:13:04 AM GMT -05:00 US/Canada Eastern
Subject: [DCHAS-L] Isovaleryl chloride odor control

I'm investigating asituation in which someone was working with isovaleryl chloride which led to an odor release that lasted for a week. After the material was extractedfrom the stock container with a syringe in a hood, it was used in a Schlenk line outside the hood. Preliminary examination of the hood with dry ice indicates that it's maintaining containment. The lab's general ventilation rate is high, as there are 10 feet of hood space in 700 square feet of floorspace.

I wonder if anyone has experience with a similar situation that could help explain there the odor came from and why lasted so long?

Thanks for any information about this.

- Ralph

Ralph Stuart CIH
Laboratory Ventilation Specialist
Department of Environmental Health and Safety Cornell University

rstuart**At_Symbol_Here**cornell.edu

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