About This Archive  | DCHAS-L 2014 Index   | DCHAS-L Yearly Index
person wearing a disposable face shield and surgical style mask

Check out Safety Emporium for your N95, N99, and face shield needs.

Previous by Date:
Subject: [DCHAS-L] Laboratory Sustainability presentations sought
Date: Wednesday, February 19, 2014 11:31:35 AM
Author: Ralph B. Stuart <rstuart**At_Symbol_Here**CORNELL.EDU> 		Next by Date:
Subject: [DCHAS-L] CSB Investigator will Participate in a Free Webinar Hosted by the American Chemical Society
Date: Thu, 20 Feb 2014 11:01:50 -0500
Author: Ralph Stuart

From: "CHANDRA, Tilak" <tchandra**At_Symbol_Here**FPM.WISC.EDU>
Subject: Re: [DCHAS-L] Benzaldehyde
Date: Wed, 19 Feb 2014 16:42:41 +0000
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: AC64846C6B11EE4F97DEDF3ED857D65C05E30968**At_Symbol_Here**aims-mbx-02.aims.wisc.edu
In-Reply-To <731700108A7439498BE12EC6F8A2585ADC4052CA**At_Symbol_Here**EXCHANGE10.campus.pomona.edu>


The solubility of benzoic acid in benzaldehyde is comparatively high, so what you see is crystallization due to storage conditions.

 

Tilak

 

From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Wayne Phan
Sent: Tuesday, February 18, 2014 5:59 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: [DCHAS-L] Benzaldehyde

 

I just did a lab safety inspection and found a bottle of Benzaldehyde with crystal formation.  The bottle is dated back to 5-25-1989.  I am not sure if this is peroxide or just polymer being formed.  What are your thoughts?  If it is peroxide, what is the proper protocol for handling it? 

 

Thanks,

 

Wayne

 

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.