A seed crystal can be dropped into a saturated solution of sodium acetate. The solution will suddenly crystallize and turn to solid. Alternately, the solution may be slowly poured out onto a seed ...

the packs are boiled to dissolve sodium acetate. Inside is a metal clicker, once the pack cools to room temperature, crystallization of sodium acetate (an exothermic process) is triggered by the ...

This rusting process produces heat. The second contains a solution of the chemical sodium acetate and a small metal disc. When the disc is bent, crystals of sodium acetate begin to form. This process ...

It's best to pass it around after starting the crystallization process ... some material comes out of solution. Strangely, the sodium acetate doesn't nucleate on gel-like material. Store the heat ...