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From: "CHANDRA, Tilak" <tchandra**At_Symbol_Here**FPM.WISC.EDU>
Subject: Re: [DCHAS-L] Proper disposal of N-ethylmaleimide & 3-nitrophenolic
Date: February 27, 2012 12:29:07 PM EST
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <6F431C2EE2F38D459F5DD28C5B9A10BC0B9EB26A**At_Symbol_Here**admin-fpm-exch1.fpm.wisc.edu>

Demystify: 

Hi Wayne:

 

If the concentration is in micro molar in buffers, those chemicals can go  to the sink. If those chemicals are mixed with the organic solvents, treat them as a hazardous waste.

 

Tilak

 

 

Tilak Chandra, Ph.D.
Chemical Safety Specialist
Environment, Health and Safety
University of Wisconsin-Madison
30 East Campus Mall
Madison, WI 53715
Ph. 608-890-0255
FAX 608-262-6767
tchandra**At_Symbol_Here**fpm.wisc.edu

 

From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Wayne Phan
Sent: Monday, February 27, 2012 10:35 AM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: [DCHAS-L] Proper disposal of N-ethylmaleimide & 3-nitrophenolic

 

Dear all,

 

One of our labs will be using N-ethylmaleimide & 3-nitrophenolic acid in tiny quantities, less than  mmol.  Should we treat this as hazardous chemical waste or could we pour them down the sink?

 

Thanks,

 

Wayne

 
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