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Endothermic Reaction (79/104)

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ENDOTHERMIC REACTION - INSTANT COLD PACK<br />
Contains Ammonium Nitrate (Urea) And Water<br />
A tube of ammonium-nitrate breaks in the bag of water, the mixture creates an endothermic reaction.  Heat is absorbed and the mixture drops in temperature to about 35 F for 10 to 15 minutes.

Fphoto-38659411A-2PS.jpg

ENDOTHERMIC REACTION - INSTANT COLD PACK
Contains Ammonium Nitrate (Urea) And Water
A tube of ammonium-nitrate breaks in the bag of water, the mixture creates an endothermic reaction. Heat is absorbed and the mixture drops in temperature to about 35 F for 10 to 15 minutes.

Copyright:© 1994 Paul Silverman - Fundamental Photographs

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