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Home Chemistry General Chemistry   Chemical Heat Pack
Chemical Heat Pack
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Chemical Heat Pack - Single
HEA-400
Price:
1 or more: $6.95 ea.
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Chemical Heat Pack - Class Set of 12
HEA-415
Price:
1 or more: $74.95 ea.
Qty:
Click a metal disk and watch the liquid crystallize.
Chemical Heat Pack
Click a metal disk and watch the liquid crystallize. Younger students can safely feel the heat of a physical change. Advanced students can determine the heat of fusion of hydrated sodium acetate (fp = 54 C). Great for calorimetry experiments! Bending the metal disk initiates the crystallization of super-cooled sodium acetate and water; boiling in water returns the solid to a liquid. Can be used over and over. Instructions and lesson ideas provided! 10 x 10 cm (4" x 4")
Additional Products

Executive Water Clock

This beautiful, digital clock is a great conversation piece!
Hand Boiler

These incredible devices, perfect for teaching about thermal energy, are sold individually and in cases of 12 for your entire class.
Heat Pipe Demo

It is Super Hot and Super Cool!
Heat-Sensitive Paper

Our new and improved thermochromic paper changes color within the temperature range of 31oC (88oF) to 37oC (98oF).
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