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Old February 12, 2011, 06:21 PM   #25
ofitg
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Join Date: May 19, 2010
Posts: 69
If anybody's interested, I found an interesting procedure for manufacturing potassium nitrate -

http://chemistry.about.com/od/makech...um-nitrate.htm

I tried it, and it really works. Using a $2 box of Kroger Instant Cold Packs (8.6 oz ammonium nitrate) plus 21 oz water and 8 oz of potassium chloride (water softener salt), I got 4.7 oz of raw potassium nitrate.

I don't know how pure it is. So far, I tested it by mixing it 50/50 with table sugar and putting a match to it - it burned very nicely, just like the store-bought potassium nitrate.
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