removing dried chrome alum/gelatin

From:Jaclynn Lett <>

Can anyone tell me the best way to clean dried chrome alum/gelatin from
slide racks? Soaking them in hot water, followed by scrubbing, doesn't seem
to work very well.  We use the green 25-slide vertical racks made by

Thank you,

Jaclynn Lett, Research Assistant

Central Institute for the Deaf
Faye and Carl Simons Center for Biology of Hearing and Deafness
4560 Clayton Ave.
St. Louis, MO  63110

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