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Subject: Re: [DCHAS-L] SDS concern
Date: Thursday, February 2, 2017 at 9:16:53 AM
Author: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] SDS concern
Date: Thu, 2 Feb 2017 07:40:56 -0800
Author: Melissa Anderson

From: Margaret Rakas <mrakas**At_Symbol_Here**SMITH.EDU>
Subject: Re: [DCHAS-L] Isopentane Storage Guidelines...
Date: Thu, 2 Feb 2017 10:31:00 -0500
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: CAAszpkzwWk4ttvov7rjbmoLP=H9ZzUXdaQ_CRx61BqFyxJ1+4w**At_Symbol_Here**mail.gmail.com
In-Reply-To


My suggestion is to call one of the manufacturers--preferably one with the most helpful MSDS--and ask whether refrigeration is necessary to preserve product quality or for safety. I have done this successfully with several of the bigger chemical manufacturers. Make sure you insist on speaking with someone in EHS as opposed to 'customer service'...

Regarding "flammable liquid' vs explosion proof refrigerators--after a quick search, Prudent Practices doesn't discuss the difference between these at all and in fact only mentions explosion proof refrigerators. Bless the folks at U-Wisconsin EHS--for many reasons!--they do discuss the difference between the two:
https://www.wisconsin.edu/ehs/osh/fire-prevention-and-safety/lab-flam/

Perhaps your local Fire Marshall could help you with deciding whether a flammable liquid or explosion proof refrigerator is best for your needs?

good luck and let us know what you find out!
Margaret

On Wed, Feb 1, 2017 at 5:04 PM, Cieslinski, Benjamin <gcieslin**At_Symbol_Here**tulane.edu> wrote:

All-

I am currently pulling together guidelines on the usage of isopentane for tissue preservation at our university, but there is contention on the proper storage of the chemical. Safety data sheets from different manufacturers vary in their storage recommendations. Here are the top three:

=B7 Recommended storage temperatures of 2-8 =B0C in an explosion proof refrigerator,

=B7 Store in a cool, flammables-rated lab refrigerator,

=B7 Store in a well ventilated flammables cabinet at room temperature.

I even stumbled upon the same question from histology group servers, and saw wildly different answers without a consensus.

Due to the high volatility and high flammability of isopentane, and the historical data that it has caused explosions in refrigerators, does anyone have a preferred set of guidelines for the storage of small quantities of isopentane?

Regards,

G. Benjamin Cieslinski, EH&S Manager

Tulane University, Office of Environmental Health & Safety (OEHS)

Mailing: 1430 Tulane Avenue #8480, New Orleans, LA 70112-2699

Office: 1440 Canal St. Suite 1156

Direct: (504) 865.5307

Cell: (504) 491.5122

For non-emergency OEHS assistance, please go to OEHS Help Desk

=A9Confidentiality Notice: The documents accompanying this transmission contain confidential privileged information. The information is the property of the sender and intended only for use by the individual or entity named above. The recipient of this information is prohibited from disclosing the contents of the information to another party. If you are neither the intended recipient or the employee or agent responsible for delivery to the intended recipient, you are hereby notified that disclosure of contents in any manner is strictly prohibited. Please notify G. Benjamin Cieslinski at Tulane University by calling 504.988.3996 immediately if you received this information in error.

--- This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety. For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org



--
Margaret A. Rakas, Ph.D.
Manager, Inventory & Regulatory Affairs
Clark Science Center
413-585-3877 (p)

--- This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety. For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org

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