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I4-34: HAND WARMER 7 years 10 months ago #1332

  • zzfixk21
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ID Code: I4-34
Purpose: Demonstrate the heat of fusion.
Description: A plastic bag contains a supersaturated solution of sodium acetate. When fusion is commenced by clicking a metal disc in the solution or by some other shock, the liquid quickly becomes solid, producing a large amount of heat.
Availability: Available

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