Sodium acetate crystallizing. Crystal growth in a super-saturated solution of sodium acetate. This solution can cool to room temperature without forming crystals. Adding a nucleation centre causes the solution to crystallize into solid sodium acetate trihydrate (white). The bond-forming process of crystallization is exothermic,producing heat. This process is used in chemical hand warmers | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Winters, Charles D. |
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