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Subject: [DCHAS-L] Experience with 4-methylcyclohexene Lab
Date: Wednesday, October 31, 2018 at 1:15:09 PM
Author: "Wilhelm, Monique" <mwilhelm**At_Symbol_Here**UMFLINT.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] Experience with 4-methylcyclohexene Lab
Date: Wed, 31 Oct 2018 17:42:14 +0000
Author: William McMahon

From: Samuella Sigmann <sigmannsb**At_Symbol_Here**appstate.edu>
Subject: Re: [DCHAS-L] [NAOSMM] Experience with 4-methylcyclohexene Lab
Date: Wed, 31 Oct 2018 13:18:11 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 1ab0a5a0-d654-0778-195d-49cb0bf35a6e**At_Symbol_Here**appstate.edu
In-Reply-To <1109037139E1524980CF9CBEB24766180118B44D5B**At_Symbol_Here**UMF-EX10EMB1.umflint.edu>


Hi Monique - I can't help answer your question, but we do do this experiment.å Lots of waste as well.å We disperse chemicals in a reagent hood and all our students work in hoods, so I guess we are fortunate in that way.

Looking forward to the answers.
Sammye

On 10/31/2018 1:15 PM, Wilhelm, Monique wrote:
Hi everyone,

I am reaching out to see if anyone has experience with the dehydration of 4-methylcyclohexanol to 4-methylcyclohexene lab in the Pavia et al lab textbook. The reaction seems to call for an awful lot of H2SO4 in addition to H3PO4 and is giving off several noxious odors.  I would like to recommend getting rid of the H2SO4 but am concerned about whether this may cause unwanted organophosphates to be produced.  I am concerned as I cannot figure out what kind of byproduct or decomp products we may be getting.  

Does anyone have any thoughts on this?  I am not an organic chemist, so maybe I am just overthinking this one too much.


Monique
_________________________________________________________
Monique Wilhelm, M.S., NRCC Certified CHO
ACS CHAS Secretary|2017 CERM E. Ann Nalley Award Recipient
Laboratory Manager|Adjunct Lecturer|Chemistry Club Advisor
Department of Chemistry & Biochemistry|University of Michigan-Flint

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

We, the willing, led by the unknowing, are doing the impossible for the ungrateful. We have done so much, for so long, with so little, we are now qualified to do everything with nothing. Teresa Arnold paraphrased from Konstantin Josef Jire€?ek (1854 ‰?? 1918)

å

Samuella B. Sigmann, MS, NRCC-CHO

Senior Lecturer/Safety Committee Chair/Director of Stockroom

A. R. Smith Department of Chemistry

Appalachian State University

525 Rivers Street

Boone, NC 28608

Phone: 828 262 2755

Fax: 828 262 6558

Email: sigmannsb**At_Symbol_Here**appstate.edu

å

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