From: William McMahon <wmcmahon**At_Symbol_Here**SUNYJEFFERSON.EDU>
Subject: Re: [DCHAS-L] Experience with 4-methylcyclohexene Lab
Date: Wed, 31 Oct 2018 17:42:14 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 38af508e056d4b799eedd7cef95e929d**At_Symbol_Here**JCCEXCH2.sunyjefferson.lan
In-Reply-To <1109037139E1524980CF9CBEB24766180118B44D5B**At_Symbol_Here**UMF-EX10EMB1.umflint.edu>


Good afternoon - We conduct this experiment in organic chemistry 2 on our campus (microscale) and have successfully substituted Dowex (strong cation exchange resin) in place of the Conc. sulfuric and phosphoric acid. I will attempt to locate a copy of the lab write-up and send to you.

Thanks and have a great day-Bill

-----Original Message-----
From: NAOSMM On Behalf Of Wilhelm, Monique
Sent: Wednesday, October 31, 2018 1:15 PM
To: naosmm**At_Symbol_Here**listserv.rice.edu; DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [NAOSMM] Experience with 4-methylcyclohexene Lab

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

---
For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org
Follow us on Twitter **At_Symbol_Here**acsdchas

Previous post   |  Top of Page   |   Next post



The content of this page reflects the personal opinion(s) of the author(s) only, not the American Chemical Society, ILPI, Safety Emporium, or any other party. Use of any information on this page is at the reader's own risk. Unauthorized reproduction of these materials is prohibited. Send questions/comments about the archive to secretary@dchas.org.
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.