From: Ralph Stuart <ralph**At_Symbol_Here**rstuartcih.org>
Subject: Re: [DCHAS-L] OSHA materials on Karen Wetterhahn's mercury exposure
Date: Tue, 22 Mar 2022 13:31:40 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: 48E58A94-0EB1-4C11-974B-FF08B0D8F3E4**At_Symbol_Here**rstuartcih.org
In-Reply-To


> if I remember correctly the chemical was actually synthesized for Sigma by a subcontractor in his garage that used Silvershield but his glove selection was not noted until after the incident.

I wonder who writes the (M)SDS in this situation? Sigma or the garage chemist? This goes back to my earlier concerns about the transfer of risk information as chemicals change hands...

It's interesting to note that only 2 of the 3 GHS information sources cited by the PubChem LCSS
https://pubchem.ncbi.nlm.nih.gov/compound/11645#datasheet=LCSS§ion=GHS-Classification&fullscreen=true
include the flammable hazard for dimethyl mercury, although the flashpoint is clearly 4 degees C according to Wikipedia as well as commercial sources.

- Ralph

Ralph Stuart, CIH, CCHO
ralph**At_Symbol_Here**rstuartcih.org

---
For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org
Follow us on Twitter **At_Symbol_Here**acsdchas

Previous post   |  Top of Page   |   Next post



The content of this page reflects the personal opinion(s) of the author(s) only, not the American Chemical Society, ILPI, Safety Emporium, or any other party. Use of any information on this page is at the reader's own risk. Unauthorized reproduction of these materials is prohibited. Send questions/comments about the archive to secretary@dchas.org.
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.