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Subject: Re: [DCHAS-L] Occupancy sensors in laboratories
Date: Friday, April 11, 2014 12:43:36 PM
Author: Ralph B. Stuart <ralph.stuart**At_Symbol_Here**CORNELL.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] low pressure spraying of potentially biohazardous materials
Date: Fri, 11 Apr 2014 14:03:30 -0400
Author: Margaret Rakas

From: Beth Shepard <Beth.Shepard**At_Symbol_Here**SIAL.COM>
Subject: Re: [DCHAS-L] Dichloromethane storage?
Date: Fri, 11 Apr 2014 11:56:28 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CAA8P=MT+suQR5yHL_JVoprPCmkp_eRAWK0WTF=B6DODrXpve1Q**At_Symbol_Here**mail.gmail.com
In-Reply-To


Is the particular bottle an "anhydrous" listing? If so, it is most likely there to minimize the potential to pick up moisture from the environment.

Beth


Beth Shepard / Technical Compliance Specialist




On Fri, Apr 11, 2014 at 11:39 AM, Ralph B. Stuart <ralph.stuart**At_Symbol_Here**cornell.edu> wrote:
A lab tech noticed a statement on a Dichloromethane bottle that said "store under an inert gas". He would like to know if this is a safety recommendation or designed to maintain the quality of the chemical by avoiding exposure to environmental gases. From what I can find, it appears to be the latter, but I thought I would ask DCHAS-L to see if anyone knows of a safety reason for this recommendation.

Thanks for any help with this.

- Ralph


Ralph Stuart CIH
Chemical Hygiene Officer
Department of Environmental Health and Safety
Cornell University

rstuart**At_Symbol_Here**cornell.edu


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