Laurie:

Like John indicated, I also work in a production laboratory and we drum all our HPLC waste for removal by a licensed waste hauler.

Jerry King

Jerome King | Technical Director

13611 B Street Omaha, NE 68144

Office 402-829-9890 Cell 402-658-5005

email | map | website

---

From: "Hung" <000003225480afd0-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Sent: Tuesday, October 4, 2016 1:25:05 PM
Subject: Re: [DCHAS-L] HPLC solvent disposal

Hello Laurie,

My experience is that it is never okay to dump chemicals into the sink. I work in a production lab and we currently put all hplc waste in a grounded 55 gallon drums and an approved waste company pick it up to dispose it properly. By law we don't have the authority to treat wastes like waste companies do. I hope this helps.

John Nguyen

On Oct 4, 2016 11:59 AM, Laurie Yoder <laurie.yoder**At_Symbol_Here**EMU.EDU> wrote:

>

> We have a research group that wants to begin a HPLC project using tetrafluoroacetic acid/acetonitrile mix (diluted to 40% in water) as the solvent. The student working on the project has used this procedure at another institution and said they dumped the waste solvent down the drain. Really? I thought this would still have some characteristic hazard. Does anyone else have experience with this mixture, and how do you dispose of it properly?
>
> --
> Laurie M. Yoder
> Assistant Professor of Chemistry and Chemical Hygiene Officer
> Eastern Mennonite University
> 1200 Park Road
> Harrisonburg, VA 22802
> --- This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety. For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org

--- This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety. For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org

Confidentiality Notice: The contents of this email message and any attachments are intended solely for the addressee(s) and may contain confidential and/or privileged information and may be legally protected from disclosure. If you are not the intended recipient of this message or their agent, or if this message has been addressed to you in error, please immediately alert the sender by reply email and then delete this message and any attachments. If you are not the intended recipient, you are hereby notified that any use, dissemination, copying, or storage of this message or its attachments is strictly prohibited.

--- This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety. For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org