From:
Schroeder, Imke <ischroeder**At_Symbol_Here**EHS.UCLA.EDU>
Subject:
Re: [DCHAS-L] Article re: bleach and guanidinium thiocyanate
Date:
Mar 19, 2025 03:49 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID:
<SJ0PR04MB8359C4591543722AA660F6B1F1D92**At_Symbol_Here**SJ0PR04MB8359.namprd04.prod.outlook.com>
In-Reply-To:
<SJ0PR04MB8359B214311BEE996EBB1CB5F1DE2**At_Symbol_Here**SJ0PR04MB8359.namprd04.prod.outlook.com>
Just following up. There was a Lessons Learned article published by Becky Grunewald:
https://safetyservices.ucdavis.edu/lessons-learned/lessons-learned-incompatible-chemicals-generate-chlorine-gas
Imke
From:
Schroeder, Imke <ischroeder**At_Symbol_Here**ehs.ucla.edu>
Date: Tuesday, March 18, 2025 at 4:37 PM
To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Subject: Re: Article re: bleach and guanidinium thiocyanate
Hi Jack,
Here are some references:
https://www.reddit.com/r/labrats/comments/t1kaqe/added_bleach_fo_dna_extraction_waste_and_gas/?rdt=59153
https://www.finishing.com/137/96.shtml
https://pubs.acs.org/doi/10.1016/j.chs.2004.12.002
Measuring toxic gases generated from reaction of guanidine isothiocyanate-containing reagents with bleach
From:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> on behalf of Jack Reidy <jreidy2**At_Symbol_Here**STANFORD.EDU>
Date: Tuesday, March 18, 2025 at 4:21 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Subject: [DCHAS-L] Article re: bleach and guanidinium thiocyanate
Hello all,
I was hoping the collective could help me track down an article. Sometime in the last 5 years or so, I recall reading a fairly in-depth article about a graduate student who suffered lingering effects due to
exposure to the gases formed from mixing bleach and a Qiagen kit (particularly the guanidinium thiocyanate). A big part of the article was about the university involved initially saying they would pay for the student’s medical care, then pulling back from
that promise. Does anyone else recall this, and if so, could you please share the article? I can’t find it. Thanks!
Sincerely,
Jack Reidy (he/him)
Research Safety Specialist & Assistant Chemical Hygiene Officer
Environmental Health & Safety
Stanford University
484 Oak Road, Stanford, CA, 94305
Tel: (650) 497-7614
I acknowledge that the land on which I live and work is the ancestral and unceded land of the
Muwekma Ohlone Tribe. As an uninvited guest on these lands, I am a beneficiary of the ongoing displacement of the Ohlone people. I pay my respects to the Native peoples, past
and present.
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