DCHAS-L Archives, Aug 04 2015 - [DCHAS-L] DMF "use within 5 years"

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Date: Tuesday, August 4, 2015 9:51:23 AM
Author: David C. Finster <dfinster**At_Symbol_Here**wittenberg.edu>

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Subject: Re: [DCHAS-L] DMF "use within 5 years"
Date: Tue, 4 Aug 2015 11:30:03 -0400
Author: Margaret Rakas

From: "Stuart, Ralph" <Ralph.Stuart**At_Symbol_Here**keene.edu>
Subject: [DCHAS-L] DMF "use within 5 years"
Date: Tue, 4 Aug 2015 15:25:56 +0000
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 12A1D57E-5DA4-4B91-9B83-60B1ACAB3717**At_Symbol_Here**keene.edu

During a lab inspection today, I noticed a bottle of extra pure Dimethylformamide in one of our labs that had a note on the manufacturers (Acros) label that says "use within 5 years of opening". A little Google searching doesn't seem to indicate the DMF is a peroxide former, so I wonder if anyone can shed some light on why this time limit is recommended?

The bottle was received in Jan 2011, so inquiring miles would like to know.

thanks for any insight on this.

- Ralph

Ralph Stuart CIH
Chemical Hygiene Officer
Keene State College
Keene, NH. 03431

ralph.stuart**At_Symbol_Here**keene.edu

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