From:
Chung, Andrew <000015259e158d13-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject:
Re: [DCHAS-L] Quenching n-butyllithium bottles
Date:
Jan 21, 2025 19:42 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID:
<DM6SPR01MB113EAA4CA27A4DDBF6E943F1E62**At_Symbol_Here**DM6SPR01MB11.namprd05.prod.outlook.com>
In-Reply-To:
<CAEiU9vCmCR4W4WjqpAFe1oGUv056UOu2nZKMXvq5yv2n6VRFpg**At_Symbol_Here**mail.gmail.com>
Hello Dr. Dannatt,
To a certain extent, the answer to your question will be state-specific (and potentially county-specific), as hazardous waste regulations are not standardized across the USA. I'd reach out to EH&S departments at nearby large research universities in the Dallas/Fort
Worth region and see if they have the answers you're looking for.
Regards,
Andrew
Andrew H. Chung, M.S., CCHO
Chemical Hygiene Officer
Environment, Health, and Safety
University of California, San Francisco
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> on behalf of Jonathan Dannatt <jdannatt**At_Symbol_Here**UDALLAS.EDU>
Sent: Tuesday, January 21, 2025 11:02 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Subject: [DCHAS-L] Quenching n-butyllithium bottles
Hello! I was hoping you all would share some wisdom about when something counts as waste. I am at a small private institution with, unfortunately, little guidance in terms of chemical safety. The questions: When does something officially
ZjQcmQRYFpfptBannerStart
This Message Is From an External Sender
This message came from outside your organization.
ZjQcmQRYFpfptBannerEnd
Hello!
I was hoping you all would share some wisdom about when something counts as waste. I am at a small private institution with, unfortunately, little guidance in terms of chemical safety.
The questions:
When does something officially count as chemical waste?
Do you need a certification to quench or neutralize reactive chemicals, such as n-butyllithium?
The backstory:
This question came up as I discussed with my chair about n-butyllithium. She asked me about the quenching process. I told her our procedure, and she asked if we needed a certification to conduct that procedure. She pointed out that once the bottle is mostly
empty that might count as chemical waste and technically we may not be allowed to neutralize it.
Since I didn't technically know the answer, I thought I would reach out to you guys.
Thank you for any advice/support you can provide.
Best,
Jonathan
--
--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at
membership**At_Symbol_Here**dchas.org
