Posted: Thu Oct 15, 2009 12:03 pm
Ice may be needed for many reasons. To help keep perishable items cold, bring down a fever of a sick person, cool you off in extreme heat of summer. But what do you do if there is no electricity and no machinery to make ice with? You can make ice with fertilizer and water!
Why it works: Ammonium nitrate (a chemical found in fertilizer)is a salt, which is made up of a 50/50 mixture of ammonium and nitrate nitrogen. When ammonium nitrate is mixed with equal parts water the ammonium nitrate dissolves into the water. The energy is absorbed from the water, which causes the temperature of the water to decrease and therefore freeze, creating ice.
Here is what you do: Fill a bucket with equal parts water and ammonium nitrate(fertilizer) place a smaller metal bowl (you can’t use plastic as it is an insulator) half filled with water in the bucket and wait. The bowl of water will freeze and you have clean ice
Make sure your storage items contain Ammonium Nitrate! You can buy it in small quantities at your local farm supply store.