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Author: Subject: potassium ferrocyanide + citric acid = HCN?
orangesphere
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smile.gif posted on 26-1-2004 at 12:40
potassium ferrocyanide + citric acid = HCN?


Is it true that, under certain conditions, mixing potassium ferrocyanide with citric acid would produce HCN fumes? :o If so, what are these conditions that one should avoid? I don't plan on doing this myself; I am not a terrorist or suicidal :P , but am simply curious. :)

This is my first post on this forum, by the way. :)
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Theoretic
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[*] posted on 27-1-2004 at 05:23


On warming, almost any acid can produce HCN fumes from ferrocyanides. Citric acid will do it. Strong acids can probably do it without heating.

[Edited on 27-1-2004 by Theoretic]
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