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Ammonium nitrate is used in cold packs, as hydrating the salt is an endothermic process.
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September 26, 2009 02:09 PM
The chemical compound ammonium nitrate, the nitrate of ammonia with the chemical formula NH4NO3, is a white crystalline solid at room temperature and standard pressure. It is commonly used in agriculture as a high-nitrogen fertilizer, and it has also been used as an oxidizing agent in explosives, including improvised explosive devices. Ammonium nitrate is used in cold packs, as hydrating the salt is an endothermic process.
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September 30, 2009 02:40 PM
Your source is a question and answer web site with no specific information concerning this subject.
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