From: David Roberts <droberts**At_Symbol_Here**DEPAUW.EDU>
Subject: Re: [DCHAS-L] Storing Pyrophoric/Water-Reactive Reagents at low temperature
Date: Wed, 18 Nov 2015 10:24:06 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CDFF23C4-CFFA-45F9-A0F1-7EF72FA38C7B**At_Symbol_Here**

I feel that explosion proof is only needed if the refrigerator is in a room that is not intrinsically safe - meaning the room has flammable vapors in it. Flammable storage seems to me to be appropriate here (meaning all wires inside the fridge are encased in such a way that no sparks can cause vapors inside the refrigerator to go off).

We do not own any explosion proof devices - but we have many flammable storage devices.


> On Nov 18, 2015, at 9:54 AM, TILAK CHANDRA wrote:
> Hi Jenny:
> It is ok to store water sensitive reagents (pyrophorics too) inside an explosion proof refrigerator. Make sure your reagent bottle is under nitrogen atmosphere and cap is closed properly. You may also apply a Teflon tape around the cap and use a secondary containment inside refrigerators main compartment to avoid the sliding of the reagent bottle.
> Good luck.
> Tilak
> From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**] On Behalf Of Fu, Zhen
> Sent: Tuesday, November 17, 2015 4:01 PM
> To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
> Subject: [DCHAS-L] Storing Pyrophoric/Water-Reactive Reagents at low temperature
> Hi All,
> I read some Protocols for Safe Use of Pyrophoric/Water-Reactive Reagents mentioned ??When refrigeration of materials is required, materials must be stored in an approved explosion-proof refrigerator/freezer.?? As we all know, even the explosion-proof refrigerator/freezer cannot provide dry environment.
> Can you share your experience on storing pyrophoric, flammable, and water-sensitive substances such as tBuLi solution in pentanes at low temperature? Great Thanks!
> Jenny
> Best Regards,
> Zhen (Jenny) Fu, Ph.D., Sr. Safety Specialist, Environmental Health & Life Safety
> Administration & Finance / Dept. of Public Safety
> University of Houston
> 713-743-8723
> zfu2**At_Symbol_Here**

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
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.