Rainbow pH demos can be done large scale. One that always gets big applause is when we use Yamada indicator in a long tube and add a base at one end and an acid at the other and mix to get a rainbow.
Department of Chemistry & Biochemistry
University of Michigan - Flint
Our Chemistry Dept. has a community night, were they do demos. Typically, this has taken place in a lecture hall with a demonstration fume hood. Recently, our new science building came online, and the coordinator of this community night would like to do the demonstrations in a public atrium area. I'm looking to the collective group for help. Do you have a demonstration that is low hazard, but HIGH cool factor that could be an option?
If you would like to contact me offline, my email is jghamo2**At_Symbol_Here**email.uky.edu.
Thank you so much for your help.
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