DCHAS-L Archives · Post dated April 11, 2014

Re: [DCHAS-L] Dichloromethane storage?

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Subject: Re: [DCHAS-L] Occupancy sensors in laboratories

Date: Apr 11, 2014 16:43 UTC

Author: Ralph B. Stuart <ralph.stuart**At_Symbol_Here**CORNELL.EDU>

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Date: Apr 11, 2014 18:03 UTC

Author: Margaret Rakas <mrakas**At_Symbol_Here**SMITH.EDU>

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From: Beth Shepard <Beth.Shepard**At_Symbol_Here**SIAL.COM>

Subject: Re: [DCHAS-L] Dichloromethane storage?

Date: Apr 11, 2014 16:56 UTC

Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>

In-Reply-To:

Demystify:

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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Re: [DCHAS-L] Dichloromethane storage?

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