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Ever wanted to make your own chemical hot pack or create your own mystical landscape? Both of these interesting activities are made possible thanks to the amazing chemistry of sodium acetate and its ability to form supersaturated solutions. Supersaturated solutions are solutions that contain more of a chemical than should be possible. As such, supersaturated solutions are unstable and tend to revert to "normal" saturated solutions by precipitating out the excess solid chemical. The process in which supersaturated solutions precipitate out the excess chemical is an exothermic, which means the reaction evolves heat. Therefore, as a supersaturated solution "adjusts" by precipitating out the excess chemical, a large quantity of heat is evolved.
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