From:
Jack Brown <orgchem1954**At_Symbol_Here**GMAIL.COM>
Subject:
Re: [DCHAS-L] LSI Free Webinar on DCM Regulations
Date:
Jul 3, 2024 20:03 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID:
<CAN52REuRNChi15ugck3ARbssdchXgQc-PhPuSyLq=kk356ugzQ**At_Symbol_Here**mail.gmail.com>
In-Reply-To:
<5abacc69-31af-499f-9b76-263476e68a10**At_Symbol_Here**retired.appstate.edu>
To all;
Please encourage students not to use DCM, since it is headed down the same road as carbon tetrachloride and chloroform.
As far as the pharmaceutical industry is concerned; we have been encouraging the development of processes not using DCM as a solvent; it's expensive and requires additional controls to use in a manufacturing environment. Especially on venting reactors and any off-gassing, since condensing DCM vapors is challenging or running them through a thermal oxidizer requires special conditions
Thanks
Jack D. Brown Ph.D.
Past-Chair Virginia Section of the ACS
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