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Subject: Re: [DCHAS-L] Benzaldehyde

Date: Feb 19, 2014 00:48 UTC

Author: Bob Alaimo <rjalaimo**At_Symbol_Here**ATT.NET>

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Subject: Re: [DCHAS-L] Benzaldehyde

Date: Feb 19, 2014 04:02 UTC

Author: Paul Harrison <pharriso**At_Symbol_Here**UNIVMAIL.CIS.MCMASTER.CA>

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From: Samantha D <samantha.dannenberg**At_Symbol_Here**GMAIL.COM>

Subject: Re: [DCHAS-L] Benzaldehyde

Date: Feb 19, 2014 00:55 UTC

Reply-To: DCHAS-L

In-Reply-To:  

Demystify: 

In my experience, peroxide formers tend to get cloudy if peroxides have formed. If it's cloudy, don't move it, if it's just a solid, it's probably the acid derivative.

Ultimately, if you're unsure or uncomfortable, you should call a hazardous waste removal company. I always find it's better to be safe than sorry.

Sam


On Tue, Feb 18, 2014 at 7:48 PM, Bob Alaimo <rjalaimo**At_Symbol_Here**att.net> wrote:
I agree most likely benzoic acid.

Sent from my iPad

On Feb 18, 2014, at 4:18 PM, Glen Ernst <geernst**At_Symbol_Here**GMAIL.COM> wrote:


It has most likely just oxidized up to benzoic acid.


On Tue, Feb 18, 2014 at 6:59 PM, Wayne Phan <Wayne.Phan**At_Symbol_Here**pomona.edu> wrote:

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





--
Samantha Dannenberg-Lushtak
Queens College, CUNY

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