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Subject: Re: [DCHAS-L] Restaurant use of liquid nitrogen for ice cream?
Date: Wednesday, September 26, 2018 at 5:20:32 PM
Author: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] Neutralizing peroxides in ethers and THF
Date: Thu, 27 Sep 2018 07:49:44 -0400
Author: ILPI Support

From: Steve McLean <steve_mclean**At_Symbol_Here**BYU.EDU>
Subject: [DCHAS-L] Neutralizing peroxides in ethers and THF
Date: Wed, 26 Sep 2018 23:07:54 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 73ab0bc0fee14774aebf6f61cd8a35b4**At_Symbol_Here**MB8.byu.local


It's the same story that many of us have heard before:  An old bottle of ethyl ether, tetrahydrofuran, or ______ (fill in the blank with your favorite peroxide-former) needs to be discarded.  For the purpose of this inquiry, assume the bottle has already been safely opened (i.e., cap removed).

 

1) Does anyone have a written procedure for testing for peroxides that they would be willing to share?

2) If peroxides are detected, what is your procedure for neutralizing/stabilizing/diluting the peroxides and rendering the liquid suitable for 'traditional' disposal routes (e.g., lab pack, bulking with UN1993 Flammable Liquids, n.o.s., etc.)

 

 

Thanks,

SJM

*******************

Steven J. McLean, ASP, CHMM

Risk Management, Safety, and Compliance

Brigham Young University

241 FB | Provo, UT 84602

stevemclean**At_Symbol_Here**byu.edu

Office: (801) 422-6879

Cell: (801) 960-5203

 

 

 

 

 

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