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Previous by Date: Subject: Re: [DCHAS-L] low pressure spraying of potentially biohazardous materials Date: Friday, April 11, 2014 2:03:30 PM Author: Margaret Rakas <mrakas**At_Symbol_Here**SMITH.EDU> |
Next by Date: Subject: Re: [DCHAS-L] Dichloromethane storage? Date: Sat, 12 Apr 2014 07:03:27 -0400 Author: Monona Rossol |
From: Jim O'Connor <oconnor.jim77**At_Symbol_Here**GMAIL.COM>
Subject: Re: [DCHAS-L] Dichloromethane storage?
Date: Fri, 11 Apr 2014 14:57:53 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 38A13903-280F-403E-8278-1EE32CD2AABB**At_Symbol_Here**gmail.com
In-Reply-To
Sigma Aldrich has a SDS that says, "Heat sensitive. Store under inert gas" I don't agree with that statement but thought you should know about the ref. My experience says the inert gas recommendation is to prevent it from evaporating while storing. A liquid seal cap should negate the need for the inert gas too I think.
Sent from my iPhone
> On Apr 11, 2014, at 12:39 PM, "Ralph B. Stuart"
>
> 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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