Looks dry? If you take precise measurements you can find water, sometimes even a few percent, in the solvent. Then remove all physical water you see until you get a clear solution of your organic solvent. Take toluene, hexane, dichloromethane, diethyl ether, chloroform or any other substance that's hydrophobic and then add water, or even leave it on air long enough. Please visit our YouTube channel at: for other videos like this one. This requires a slightly different procedure than this video. In an upcoming video we will show how to make sodium nitrate from ice packs and baking soda. You can also make sodium nitrate by substituting the potassium hydroxide for 40grams of sodium hydroxide and follow the same procedure as the video. Normally pure sugar does not burn but if the potassium nitrate works then it will flare up in a purplish pink flame. Now you have potassium nitrate! To test it, mix a small portion with an equal amount of sugar and set it on fire. You can also boil the solution to dryness, just remember it is still producing ammonia. Leave the solution in a very well-ventilated area (outside is best) for all the water and ammonia to evaporate. This step will produce large amounts of ammonia gas and must be done outside or in a fumehood. When both solutions are clear and ready, add the ammonium nitrate solution to the potassium hydroxide solution. Add just enough water to completely dissolve the potassium hydroxide. Potassium hydroxide is sold online to make homemade soaps and for biodiesel. Separately, measure out 56 grams of potassium hydroxide. If it has an insoluble anti-caking agent then you need to filter it off through a coffee filter. It will take even longer in cold water so use hot water when you can. Take 80 grams of ammonium nitrate and dissolve in 70 milliliters of hot water. If you're using an already used instant cold pack then filter out the liquid and let it evaporate until it's dry. Usually its coated in an anti-caking agent so it'll be off-color. The rest of the pack is ammonium nitrate. If its unused there will be a water pouch that you can discard. Get an instant cold pack that clearly says it contains ammonium nitrate, cut it open, and pour the contents into a container. Some instant cold packs contain ammonium nitrate as their active ingredient and when mixed with potassium hydroxide will produce potassium nitrate and ammonia gas. Potassium hydroxide is highly corrosive wear gloves when working with it. Perform the reaction outside or in a fume hood. Make Potassium Nitrate from Instant Cold Packs and Potassium Hydroxide Warning: This reaction will produce large quantities of toxic ammonia gas.
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