The Colorful Salting Out Chemical Demonstration Kit is an attention-grabbing display where students observe how the dyes within a marker can be separated and then temporarily recombined. A perfect introduction to concepts like chromatography, intermolecular forces, density and solutions.
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Two colored liquids are layered on top of each other, one blue and the other yellow. Shake the bottle and the liquid within turns green. Upon standing, the two original colored layers reestablish themselves. This attention-grabbing demonstration is a perfect introduction to concepts like chromatography, intermolecular forces, density and solutions.
Concepts: Chromatography, solutions, non-polar vs. polar, immiscibility.
Time Required: 15 minutes
Materials Provided: Isopropyl alcohol, sodium chloride, marker, plastic soda bottle.