menchaca
Hazard to Self
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Registered: 12-3-2003
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another way to nitric acid
i´ver recntly have find somo information about how nitric acid was made in medieval ages the reaction was this:
CuSO4 + 2KNO3 ---->K2SO4 + CuO + 2NO2 + 1/2O2
the CuSO4 were strongly heated in an iron pipe and the NO2 gases were conduced to water were formed the nitric acid. What do you say about it? thanks
again
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Mephisto
Chemicus Diabolicus
Posts: 295
Registered: 24-8-2002
Location: Germany
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That’s right. I found similar preparation here. But it’s in German.
A mixture of KAl(SO4)2 · 12 H2O, KNO3 and CuSO4 · 5 H2O (in same parts) is heated in a dry glass tube. The evolved gas is condensed in another cold
tube and should be concentrated nitric acid.
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