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Levi
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I guess this is OT, but what are the products of the reaction between urea and ethanol? Is there a simple way to purify the urea contaminated with
these products?
Chemcrime does not entail death. Chemcrime is death.
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guy
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| Quote: | Originally posted by not_important
Crack the prills open, Just crush them some, you don't need to take them to a powder. Extract with near boiling alcohol, filter, cool, and filter to
collect the urea. Use the filterate to extract more of the fertilizer.
One gram of urea dissolves in
1 ml H2O
10 ml 95% ethanol
1 ml 95% ethanol boiling
20 ml absolute EtOH
6 ml MeOH
When hot urea slowly reacts with water and alcohols, so try to do the hot stage as quickly as possible. The roughly 10:1 solubility swing gives
pretty good recovery. |
Thanks. I have denatured alcohol. Is that near 100% ethanol?
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Levi
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| Quote: | From Wikipedia
Methylated spirit
Methylated spirit (or Meths, also denatured alcohol or surgical spirit) is ethanol which has been rendered toxic or otherwise undrinkable, and in some
cases dyed. It is used for purposes such as fuel for spirit burners and camping stoves, and as a solvent. Traditionally, the main additive was 10%
methanol, which gave rise to its name, but this is not always the case now. There are diverse industrial uses for ethanol, and therefore literally
hundreds of recipes for denaturing ethanol. Typical additives are methanol, isopropanol, methyl ethyl ketone, methyl isobutyl ketone, denatonium, and
even (uncommonly) aviation gasoline.
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[Edited on 22-3-2007 by Levi]
Chemcrime does not entail death. Chemcrime is death.
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16MillionEyes
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So it appears if anyone tries to get urea out of common urine will only get a small yield. Can anyone explain to me why this is a dangerous process?
What do you have to do exacly?
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