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snappyheat.com
Science! These reusable sodium acetate 'hot ice' packs produce heat when you flex the metal disc inside. So not only do they look crystal cool, they feel warm! We're handing these WinterFest hand warmers out all week, so watch for them! #monashwinter monash.edu/winterfest | Monash University
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FacebookMonash University
Supersaturated Sodium Acetate! #Chemistry Supersaturated sodium acetate is a solution that temporarily holds more sodium acetate dissolved in water than it normally can at a lower temperature. This is achieved by dissolving the salt in hot water and then carefully cooling the solution without disturbing it. The solution remains in this unstable state until a disturbance or seed crystal triggers rapid crystallization, where the excess sodium acetate quickly forms solid crystals and releases heat.
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