Date: Fri, 29 Apr 2005 11:29:10 -0700
Reply-To: Debbie Decker <dmdecker**At_Symbol_Here**UCDAVIS.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Debbie Decker <dmdecker**At_Symbol_Here**UCDAVIS.EDU>
Subject: Re: Peroxides within empty containers.
In-Reply-To: <4272710D.2020502**At_Symbol_Here**>

At 12:38 PM 4/29/2005 -0500, you wrote:
>Scenario:  Ethyl ether in metal container that is over 10 years old.
>Peroxide content unknown.  Container is empty (<3%) to the best of our
>knowledge.  Cap is clear plastic with no visible signs of peroxides.
>Understand that peroxides can concentrate as the ether evaporates.


Anthony's advice to contract with a reactive chemicals disposal firm is
excellent.  I would add the following couple of details to it.

What the disposal firm needs to do is remotely open the can and add a
suitable solvent (ethanol is probably a good choice)  then reseal the can
and dispose as a flammable liquid lab pack, carefully re-labelling it
according to your local requirements.  I don't know if I'd attempt to bulk
it with other flammable liquids at that point.  If the container comes
apart during the remote opening, well, you've solved your problem, haven't you?

Onyx Environmental is a firm we've used - I have no financial or personal
interest in Onyx.

Hope this helps,

Debbie M. Decker, Campus Chemical Hygiene Officer
Environmental Health and Safety
University of California, Davis
1 Shields Ave.
Davis, CA  95616
(530)754-7964/(530)752-4527 (FAX)
Co-Conspirator to Make the World A
Better Place -- Visit and join the conspiracy

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