From: Allen Niemi <anniemi**At_Symbol_Here**MTU.EDU>
Subject: Re: [DCHAS-L] Storing Pyrophoric/Water-Reactive Reagents at low temperature
Date: Thu, 19 Nov 2015 10:25:35 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CAN0bzO4=CoriE5p6dEjscdxgvKExpmz3wQ98bZe44cY943BE5A**At_Symbol_Here**
In-Reply-To <5791EC637A40E34AADB9414128F980EB3BD32139D9**At_Symbol_Here**>

I'd like to add another perspective to this discussion.. I believe that there are two potential problems with refrigerated storage of pyrophoric materials. First, as others have mentioned is the problem of condensation forming on the container and potential contact with the contents if it is used while still cold. Second, is that pyrophoric materials should be segregated from regular flammable and combustible liquids and solids. Pyrophoric materials are like oxidizers and explosives fuses in that regard. If you are going to refrigerate pyrophoric materials (and there is no fire safety reason for doing this), do not allow other flammable materials to be stored in the same fridge or cabinet.


On Tue, Nov 17, 2015 at 5:00 PM, Fu, Zhen <zfu3**At_Symbol_Here**> wrote:

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!


Best Regards,

Zhen (Jenny) Fu, Ph.D., Sr. Safety Specialist, Environmental Health & Life Safety

Administration & Finance / Dept. of Public Safety

University of Houston



Allen Niemi, PhD
Occupational Safety and Health Services
Room 322 Lakeshore Center
Michigan Technological University
Phone: 906-487-2118
Fax: 906-487-3048

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.