From: Melissa Charlton-Smith <charltonsmith**At_Symbol_Here**WVWC.EDU>
Subject: Re: [DCHAS-L] Pyrophorics
Date: Fri, 25 Sep 2015 09:44:36 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 6c927be8d14906976ec6c0b5eb6ee8ac**At_Symbol_Here**
In-Reply-To <012201d0f705$aa33c100$fe9b4300$**At_Symbol_Here**>

Neal, are you speaking the common 1.5% to 1.7% solution in pentane? The LEL of pentane is 1.5% (10% LEL, 1,500 ppm) which doesn=E2=80™t really answer your question about t-BuLi itself. Like you I have searched and the best I could fine was how to isolate t-BuLi solutions to pure crystalline form, but it was never exposed to varying % of oxygen, all was done under argon and/or nitrogen.


From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**] On Behalf Of NEAL LANGERMAN
Sent: Thursday, September 24, 2015 4:15 PM
Subject: [DCHAS-L] Pyrophorics

Does anyone have any citations for the low limiting oxygen concentration of pyrophoric compounds. I am specifically looking for the oxygen percentage at which compounds such as t-BuLi become non-ignitable. For example, that value is 5% for hydrogen. I have found a reference for silane, but, as is typical for silane, there are a myriad of confounding issues.

I have searched both SciFinder and Science Direct and have not found helpful data.




The information contained in this message is privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer.

ACSafety has a new address:



PO Box 152329


011(619) 990-4908 (phone, 24/7)

We no longer support FAX.

Please contact me before sending any packages or courier delivery. The address for those items is:

5340 Caminito Cachorro

San Diego CA 92105

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.