Before it is used, an instant ice pack contains both water and ammonium nitrate in separate tubes. In the water is another plastic bag or tube containing ammonium-nitrate fertilizer . Ammonium nitrate is used in cold packs and freezing mixtures due to its endothermic hydrating process. Keep in mind, though, that you can buy ammonium nitrate as a pure chemical; alternatively, you can collect it from instant cold packs or some fertilizers more easily and inexpensively than making it yourself. Global production was estimated at 21.6 million tonnes in 2017. Ammonium nitrate is a common chemical highly used in instant cold packs because of its dissolution to water which is quite endothermic. When you hit the cold pack, it breaks the tube so that the water mixes with the fertilizer. When you squeeze the pack you break the inner bag and the water mixes with the ammonium nitrate, making the pack cold. Ammonium nitrate is also used in pyrotechnics, herbicides and insecticides. Ammonium nitrate cold packs are popular for treating sports, camping and schoolyard injuries because they are portable and require no refrigeration. When these tubes are broken, the water and ammonium nitrate mix, setting off an endothermic reaction and causing the water to freeze. The freezing of the water prevents all of the ammonium nitrate from instantaneously mixing with the water. I started with trying to make a cold pack … OPTIONS FOR OBTAINING AMMONIUM NITRATE. The cold pack is activated by breaking the barrier separating the water and ammonium chloride, allowing them to mix. I did not purchase the wal-mart brand cold-packs since I was only interested in pure ammonium nitrate. Just pick up an instant cold pack next time your out, … You can make ammonium nitrate from common household chemicals. Instant ice packs make use of endothermic reaction for fast and responsive usage of the pack when injury strikes. Ammonium Nitrate, technical grade prilled (granular). Ammonium nitrate is commonly used in agriculture as a high-nitrogen fertilizer. Upon a little Google search I found out that it was ammonium nitrate mixed with calcium carbonate. The outer bag is filled with ammonium nitrate and the inner bag is filled with water. If you are doing a demonstration, making a cold pack, or just seeking examples of endothermic reactions and processes, there are other chemicals you can react to get a lowered temperature: -Walgreens: Finally I went to the local Walgreens pharmacy, where they had an 8-pack of instant cold packs containing ammonium nitrate for 9.99. Ammonium nitrate is a chemical compound with the chemical formula NH 4 NO 3.It is a white crystalline solid consisting of ions of ammonium and nitrate.It is highly soluble in water and hygroscopic as a solid, although it does not form hydrates.It is predominantly used in agriculture as a high-nitrogen fertilizer. The liquid inside the cold pack is water. Besides pseudoephedrine, the ingredients are lithium, a small quantity of water, Coleman fuel (or ether) and ammonium nitrate (found in chemical ice packs and a … I've read a bunch of information on the web on how to do it but very little is available that is specific and useful. I tried an experiment today to see if I could make ice from ammonium nitrate and water much like they did on Jericho. Ammonium nitrate is a white, granular substance that is mainly used in fertilizer. Ammonium nitrate cold packs are available in most stores, but it is possible to make one at home using a few ingredients. May be used as laboratory reagent, in agriculture and gardening as a high-nitrogen fertilizer. For instant ice packs. It is also used in instant cold packs, as hydrating the salt is an endothermic process. Ammonium Nitrate. So, the easiest way to get it is to buy a cold pack.
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