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Subject: Re: [DCHAS-L] Here we go again! Another demo gone wrong
Date: Saturday, November 3, 2018 at 4:36:38 PM
Author: Samuella Sigmann <sigmannsb**At_Symbol_Here**appstate.edu> 		Next by Date:
Subject: Re: [DCHAS-L] Here we go again! Another demo gone wrong
Date: Sat, 3 Nov 2018 17:35:48 -0400
Author: ILPI Support

(Note: This post is 7 years old and may contain outdated information.)

From: McGrath Edward J <Edward.McGrath**At_Symbol_Here**REDCLAY.K12.DE.US>
Subject: Re: [DCHAS-L] Here we go again! Another demo gone wrong
Date: Sat, 3 Nov 2018 21:12:18 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: BN3PR03MB1384A01AC1345E12CF9ADDDE96C80**At_Symbol_Here**BN3PR03MB1384.namprd03.prod.outlook.com
In-Reply-To <1109037139E1524980CF9CBEB24766180118B4E40B**At_Symbol_Here**UMF-EX10EMB1.umflint.edu>


Hi everybody:

This looks similar to a Flinn product (flaming vapor ramp) but the brief video clip suggests she didn't follow Flinn's procedure.  Flinn's ramp is much smaller, uses a tea candle, and a flask with petroleum ether vapor.  This one looked homemade, and the teacher was lax with safety precautions (her long hair was not secured, and she reached over her head to add the accelerant).  Both of these contributed to the incident.

Regardless, whether this demo is done with the Flinn product or not, adequate shielding is a must.  I wouldn't attempt it with  my classes in any event. 


Eddie McGrath

Edward J. McGrath
Science Supervisor
Red Clay Consolidated School District
1502 Spruce Avenue
Wilmington DE  19805

(302) 552-3768

We did not inherit the Earth from our ancestors.  We borrowed it from our children.
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> on behalf of Wilhelm, Monique <mwilhelm**At_Symbol_Here**UMFLINT.EDU>
Sent: Saturday, November 3, 2018 3:42:06 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Here we go again! Another demo gone wrong
 
It is a kit that you can buy from Flinn.



Sent from my Verizon, Samsung Galaxy smartphone


-------- Original message --------
From: Laurence Doemeny <ldoemeny**At_Symbol_Here**COX.NET>
Date: 11/3/18 2:37 PM (GMT-05:00)
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Here we go again! Another demo gone wrong

It saw this too.  It made me wonder if the approach we, the ACS, is taking is the correct approach.  In addition to teaching the safe way to show the demonstration we need to discover where this teacher learned how to do this demonstration, follow the trail back to get to the source of the demonstration and correct the problem.


From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Kirk Hunter
Sent: Friday, November 2, 2018 8:04 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] Here we go again! Another demo gone wrong

Hi All,

Here we go again. Another flammable demonstration gone wrong.

This was reported on ABC National News tonight (Nov 2). It happened in Georgia this week.

https://abcn.ws/2qofYYp

Fortunately, the teacher was not seriously injured (minor burns and burned hair) and none of the students were hurt.  One very, very lucky teacher!

I guess she was trying to show that flame will follow a vapor or that the vapor had a higher density than air.


Kirk Hunter
Waxahachie, Texas


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