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Subject: Re: [DCHAS-L] Water bottles in labs
Date: Wednesday, April 27, 2016 3:02:16 PM
Author: Patrick A Ceas <ceas**At_Symbol_Here**STOLAF.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] Water bottles in labs
Date: Wed, 27 Apr 2016 15:12:01 -0400
Author: Monona Rossol

From: Patrick A Ceas <ceas**At_Symbol_Here**STOLAF.EDU>
Subject: [DCHAS-L] "safe" barking dog demo
Date: Wed, 27 Apr 2016 14:10:44 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CAGzA3XP5-7s6dGALC1sb0i0JucPLY12rKJtR1hw=h6Fe4jD=dA**At_Symbol_Here**mail.gmail.com


Just a quick yes or no, please. Would you lump the "Safe Barking Dog Demo" in the same category as the Rainbow Demo & Tornado Demo (i.e., it is an open flame demo, where additional flammable fuel -- let's say 95% ethanol -- could be added to an already confined ignited situation, therefore it is not prudent to perform, especially at a local grade school). We are having a discussion about it.

Here are two links that show/explain it:
https://www.youtube.com/watch?v=6U56gVbcb4Q

http://chemistry.about.com/od/funfireprojects/a/Fire-In-A-Bottle-Barking-Dog-Chemistry-Demonstration-Alternative.htm

Thanks.

Pat

--
Patrick A. Ceas, Ph.D.
Chemical Hygiene Officer
312 Regents Hall of Natural Sciences
St. Olaf College
Northfield, MN 55057
507-786-3560 (o)
507-321-0379 (c)

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