From:
Samuella Sigmann <000017d7b6a35b3a-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject:
Re: [DCHAS-L] [External] [DCHAS-L] Input on chemical incident
Date:
Feb 8, 2024 22:50 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID:
<3f02fd8b-e211-42c2-bfdb-2145754d864f**At_Symbol_Here**appstate.edu>
In-Reply-To:
<DM3PR08MB9587E53F1F271D763D1B5696A3452**At_Symbol_Here**DM3PR08MB9587.namprd08.prod.outlook.com>
Well, no way to know from here, but sure sounds like a classic case
of nitric acid added to organic waste.
S-
On 2/7/2024 11:49 AM, Alex Hagen wrote:
Good morning,
We had a small hazardous waste incident in
one of our labs recently, and I am trying to help the lab
gather information on potential causes. A four-liter amber
glass bottle of chemical waste containing 50% methanol, 44%
ethyl acetate, and an assortment of six p-phenylenediamine
antioxidants (PPDs) pressurized and broke open. The bottle was
tightly capped and very full, it only had about 1.5 inches of
space left at the top. The bottle broke open at the bottom of
the bottle in a jagged formation. No polymerization of the
contents was observed, but some speculated an event like that
could have led to the pressurization of the container. I have
already informed the lab that they should not fill waste
containers more than 80%.
I have not been able to find information on
similar events involving PPDs. Any input or information this
group could provide about what may have led to this event is
greatly appreciated.
Regards,
ALEX
HAGEN, CCHO
Laboratory Safety Inspection Program
Manager
Environmental Health & Safety
Department
Research & Occupational Safety,
Laboratory Safety Inspection Program
Hall Health / Box 354400 / Seattle, WA
98195-4400
206.221.2339 / mobile 206.713.5267 / fax
206.616.3360
fischera**At_Symbol_Here**uw.edu /
www.ehs.washington.edu
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