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How does it work Heat pack
Description: Tell us what you think, find out how it works, what type of metal disk is inside, we know its a chemical reaction, but what kind

Date Taken: 3/3/2010
Views: 520
City: Johnstown
State: pennsylvania
Country: United States
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When you activate the pack it looks like ice. Its actually aqueous sodium acetate crystallized. this is different. even though this stuff is sometimes called hot ice, its not really ice at all. I think people call it ice because when this substance sodium acetate, is dissolved in water, and then moved, it freezes, or becomes solid. When it becomes solid, it looks like ice. but its really not. Also, dry ice is really cold, and this is the stuff used in hand warmers - But why does this happen -- johnstownwildfire
Uploaded on 3/4/2010
by johnstownwildfire
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