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Subject: Re: [DCHAS-L] neutralizing ammonium sulfide
Date: Sunday, August 2, 2020 at 12:39:04 PM
Author: Denise Beautreau <deb313**At_Symbol_Here**LEHIGH.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] neutralizing ammonium sulfide
Date: Sun, 2 Aug 2020 10:10:29 -0700
Author: davivid

From: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] neutralizing ammonium sulfide
Date: Sun, 2 Aug 2020 16:57:33 +0000
Reply-To: Monona Rossol <actsnyc**At_Symbol_Here**cs.com>
Message-ID: 1961312194.390595.1596387453656**At_Symbol_Here**mail.yahoo.com
In-Reply-To


Yup, that's the rule.  If you can defend the conversion for purpose, it's OK.  For example, in art, the ceramic glaze waste always contains highly regulated stuff.  But if the teachers will concentrate it and fire it as an experimental process for students to see what color and properties it has and maybe use it for unseen surfaces like the insides of bottles with small necks or making little mosaic tesserae, hey, it's not waste.  And once fired and into solid chunks, it is not waste by any standard.  Never mind that you might find all the fired solid tesserae ugly and then throw them out. That's just an experiment that went bad. Mission accomplished.  And there have been occasions on which a waste glaze really does look great.

But to just convert the ammonium sulfide you don't want into something that you can throw away without cost would seem to me to be hard to defend..  Just the fact that you do not personally declare it as waste when you actually have no use for it doesn't work as far as I know.

My advice is to find a defensible secondary reason for that conversion if this is a waste that is created on more than a single occasion. 

Monona


-----Original Message-----
From: Joseph DiVerdi <joseph.diverdi**At_Symbol_Here**COLOSTATE.EDU>
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Sent: Sun, Aug 2, 2020 12:07 pm
Subject: Re: [DCHAS-L] neutralizing ammonium sulfide

I would argue this is not "waste treatment" unless I, the chemist responsible for the process, defined the ammonium sulfide as "waste."

jadv
--
Joseph A. DiVerdi, Ph.D., M.B.A.
Associate Professor of Chemistry
Colorado State University, Fort Collins, CO, USA
+1.970.980.5868 - http://diverdi.colostate.edu/

On Aug 2, 2020, at 5:13 AM, Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**lists.princeton.edu> wrote:

=EF=BB=BFI think this is called waste treatment and not allowed without a license.  Monona 


-----Original Message-----
From: JOHN L STRAUGHN <0000120dde6ec15c-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
To: DCHAS-L <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Sent: Sun, Aug 2, 2020 05:34 AM
Subject: Re: [DCHAS-L] neutralizing ammonium sulfide


I'd try this: small scale, look for sulfur precipitation (may clear with further addition of peroxide), nitrogen gas bubbling and further NOx generation (red-brown fumes, ie. in a hood) possible. Get a recipie that works and share it in glory!
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> on behalf of 00000eca7dd1d088-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU <00000eca7dd1d088-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Sent: Friday, July 31, 2020 12:06 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Subject: Re: [DCHAS-L] neutralizing ammonium sulfide
 
You might look into adding hydrogen peroxide, perborate or some persulfate derivative.

Dan



-----Original Message-----
From: Nickie Norton <nnorton**At_Symbol_Here**SHEPCHEM.COM>
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Sent: Fri, Jul 31, 2020 10:35 am
Subject: [DCHAS-L] neutralizing ammonium sulfide

Hi All,
 
We are using ammonium sulfide in excess in a reaction in water.  What is the proper way to dispose of the aqueous ammonium sulfide?  We are concerned that if we add bleach we will make chloramine.  Does anyone have a way to convert the ammonium sulfide to ammonium sulfate?
 
Thank you,
 
Nickie Norton
Research Chemist
The Shepherd Chemical Company
4900 Beech Street
Norwood, OH  45212
nnorton**At_Symbol_Here**shepchem.com
513-842-9332
 
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