From:
Carl Turner <C.Turner**At_Symbol_Here**COLOUR-SYNTHESIS.COM>
Subject:
Re: [DCHAS-L] FW: The use of DCM (Methylene Chloride) concern and regulation changes...
Date:
May 29, 2024 16:08 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID:
<48C25F62-808C-494D-9735-E3A092E918BC**At_Symbol_Here**colour-synthesis.com>
In-Reply-To:
<SA1PR22MB380185933D588D043C5454FEE8F12**At_Symbol_Here**SA1PR22MB3801.namprd22.prod.outlook.com>
In my experience sc co2 only has similar solvent polarity to hexane / heptanes. Plus you probably require new kit. Not sure its a simple straight swap.
Dr. Carl Turner | Operations Director
T +44 (0) 1617211403 | M +44 (0) 7464546471 | W www.colour-synthesis.com
Visit our website! - www.colour-synthesis.com

On 29 May 2024, at 16:38, Jerry King <kingjw100**At_Symbol_Here**hotmail.com> wrote:
Consider using LCO2 or SC-CO2
Sent from my iPhone
On May 28, 2024, at 12:15 PM, Membership Chair <membership**At_Symbol_Here**dchas.org> wrote:
From: Aniello Tambasco <aniello.tambasco**At_Symbol_Here**wilkes.edu>
Sent: Friday, May 24, 2024 9:48 AM
To: membership**At_Symbol_Here**dchas.org
Subject: The use of DCM (Methylene Chloride) concern and regulation changes...
Good Afternoon All-
Hope all is well. So, our Procurement director (Now an expert in chemistry) is concerned on the use of DCM because a panel discussion came across an Insurance discussion email. Please see below. I would appreciate any information and
what other Institutions are doing. We are following the SDS and other proper protocols (NIOSH exposure limits and skin protection). Also, it is mainly used in our Organic chemistry labs.
Kind Regards,
Aniello Tambasco
Lab Manager
Wilkes University
84 W. South St.
Wilkes-Barre, PA 18766
570-408-3218
Hello Everyone,
I have a member input request for the group on
Methylene Chloride (dichloromethane)-
“The EPA will be banning
methylene
chloride (dichloromethane) and I was wondering if any of the labs currently using it will plan on either requesting use of alternatives (ethyl acetate, MTBE, toluene, 2-MeTHF) or will start to perform
testing to ensure there is no over exposures?”
Additional reference -
Risk
Management for Methylene Chloride | US EPA
Thank you,
Hannah Reed
Risk Consultant
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