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Subject: Re: [DCHAS-L] reactive mixture
Date: Thursday, June 29, 2017 at 12:26:40 PM
Author: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] reactive mixture
Date: Thu, 29 Jun 2017 17:57:36 +0000
Author: "Brown, Kimberly Jean"

From: William Banner <000004336651e0ee-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] reactive mixture
Date: Thu, 29 Jun 2017 16:39:58 +0000
Reply-To: William Banner <jeepdady99**At_Symbol_Here**yahoo.com>
Message-ID: 63344048.1292362.1498754398529**At_Symbol_Here**mail.yahoo.com
In-Reply-To


I'm not sure if my last email was delivered.  I suggest using the Chemical Reactivity Worksheet, Link = Chemical Reactivity Worksheet 4.0 | AIChE

Chemical Reactivity Worksheet 4.0 | AIChE

Chemical Reactivity Worksheet 4.0 The Chemical Reactivity Worksheet (CRW) is a free software program you can....


It is fairly self explanatory.  You can set up mixtures and it will let you know of any published hazards from the mixtures.
Hope this helps.

 
Ken Banner 0lllllll0 home: 336-856-1461 mobile: 336-895-8305


On Thursday, June 29, 2017 12:10 PM, Wayne Wolsey <wolsey**At_Symbol_Here**MACALESTER.EDU> wrote:


Greetings,

I suggest consulting the book, "Perchloric Acid and Perchlorates. 2nd Ed, 2003, by AA Schilt and L. McBride.  This is sold by the GFS Chemical Company, but should be available either in your Library or via interlibrary loan.

Wayne Wolsey
Professor Emeritus
Macalester College
St. Paul, MN

On Thu, Jun 29, 2017 at 9:53 AM, Ellen M. Sweet <ems325**At_Symbol_Here**cornell.edu> wrote:
Hi everyone,
We have a question from a colleague:
 
I have a researcher who is proposing to reflux a mixture of hot nitric 70%)/ perchloric (70%) and sulfuric acids (95%+) in a 1:2:1 mixture for removal of contamination from diamond surfaces. I was wondering if any of you have experience with a similar process? I'm concerned as there is limited information available for this method (published research data) and the available safety data does not recommend mixing sulfuric and perchloric acids not to mention heating such a mixture. We do have a perchloric acid hood available to the researcher, but I'm looking for a more defined, successfully executed process that can be used as reference in terms of apparatus, parameters such as time, temperature, volumes etc. Any feedback on overall safety considerations are also welcomed J
 
Ellen Sweet
Laboratory Ventilation Specialist
Department of Environmental Health and Safety, Cornell University
American Chemical Society, Division of Chemical Health and Safety
315-730-8896
 
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