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http://www.flinnsci.com/store/scripts/prodView.asp?idProduct=15615
If you can darken the presentation area, this works quite well. It's
just a variation on the classic flame test, but instead of using
alcohol, you dip a wet wood splint in a little of the chemical, then
hold it in the flame of a propane blowtorch. Only a little bit needed,
the colors are easily visible.
The salts are sodium chloride, cupric chloride, potassium chloride +
strontium chloride. (They include lithium chloride, too, but the
difference between that and the strontium is very subtle.)
Jonah Cohen
Outreach & Public Programs Manager
The Children's Museum
"Burning garbage makes smoke, which floats up to the sky where it
becomes stars."
"That doesn't sound right, but I don't know enough about stars to
dispute it."
-----Original Message-----
From: Informal Science Education Network
[mailto:[log in to unmask]] On Behalf Of Jeff Rosenblatt
Sent: Wednesday, September 21, 2011 3:45 PM
To: [log in to unmask]
Subject: Fireworks Demo
ISEN-ASTC-L is a service of the Association of Science-Technology
Centers
Incorporated, a worldwide network of science museums and related
institutions.
************************************************************************
*****
Does anybody have recommendations for 'safe-ish' elements to use for a
fireworks demo? Safe for both staff and the audience members. I'm
mainly concerned about inhalation hazards.
We are planning to drop/sift the elements over a propane torch flame
(not putting them inside of a Hydrogen balloon). Any expertise is
greatly appreciated.
--Jeff--
Jeff Rosenblatt
Director, Science City
Union Station Kansas City, Inc.
30 W. Pershing Rd. Suite 850
Kansas City, MO 64108
Office: 816-460-2218
[log in to unmask]<mailto:[log in to unmask]>
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