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| Address | P.O. Box 219 Batavia, IL 60510 |
| Phone | 800-452-1261 |
| Fax | |
| flinn@flinnsci.com |
DC0061
Price: FREE
Ever used a cold pack on an injury? This quick and easy procedure will demonstrate how to make a cold pack with chemicals. The process in making the cold pack is not a chemical reaction but merely the physical act of dissolving. When ammonium nitrate is dissolved in water, the process is endothermic, thus producing the cold pack.
