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.

Dave

> 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**med.cornell.edu] 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**uh.edu

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