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From: Thompson, Michelle [EHS] <00001def33502f7a-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: [DCHAS-L] Solvent Purification System Disposal
Date: Aug 27, 2024 20:17 UTC
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: <MW4PR04MB72019B3DCFAA73C03624DD29B4942**At_Symbol_Here**MW4PR04MB7201.namprd04.prod.outlook.com>
In-Reply-To:
Hello Everyone,
I’m looking for anyone who has disposed of a solvent purification system – specifically, how did you address the risk of accumulated peroxides in some of the columns (such
as ether and THF)? Is this even a notable risk? I’ve seen some literature mentions about running dilute acidic ferrous sulfate through alumina columns to remove peroxides, but I’ve not seen anything addressing whether this is necessary for these types of systems.
We’ve got a few systems that have been unused for years and the PIs want to dispose of them. After our recent peroxide detonation, our team is feeling much more cautious
about peroxide-forming chemicals.
Example:
Thanks,
Michelle Thompson
Michelle Thompson, Ph.D.
Assistant Director EH&S - Laboratory Safety Manager
Chemical Hygiene Officer
2408 Wanda Daley Drive, Ames, IA 50011-3602
(515) 294-0549
| mjl**At_Symbol_Here**iastate.edu