bigtrevs98
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Question on Peracetic Acid
Hello everyone im new and kinda young but very smart and interedted in chemestry. I have taken chemestry but never gotten all the way through...but i
still would like to learn. So I have something that I'm curious about. I mixed a 1:1 ratio of 3% H202 and 5% Acetic Acid. I was led to believe that
that combination would make Peracetic Acid. If that isn't correct can someone please explain the process of making peracetic acid.
But my question is, I put a penny is the clear solution... and nothing happened... maybe a little layer of bubble I'm assuming from the H2O2. But I
left it overnight and now the solution is a dark blue color. Could someone tell me what heppened?
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bigtrevs98
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When I mixed the 2 reactants there was no physical change (bubbles, heat, etc.)
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gdflp
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Those two reactants are both very dilute and because an equilibrium forms as follows CH3COOH + H2O2 <--> CH3COOOH + H2O, very little peracetic
acid actually forms and it is very unlikely that the solution will heat up as it would with more concentrated reactants. Under the acidic oxidizing
conditions, some of the copper was dissolved in the acetic acid and you now have a dilute solution of copper(II) acetate in water, likely with free
acid left over. This process of copper dissolution is very slow when the reactants are so dilute, that's why you didn't notice anything immediately.
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bigtrevs98
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Okay... well wouldnt it be possible to make the dilute solution then boil the per acetic acid out of the solutioun through a tube running through ice
water to make pure peracetic acid?
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bigtrevs98
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Or how would I go about making more concentrated Peracetic Acid
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gdflp
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Try searching the forum, this has been discussed in many threads previously https://www.google.com/?gws_rd=ssl#q=peracetic+acid+site:www... Also, it is typically considered good forum etiquette to edit a previous post by
clicking the edit button in the top-right corner of the post, rather than posting multiple times in rapid succession.
[Edited on 4-14-2015 by gdflp]
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bigtrevs98
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Okay thanks. And sorry. Didn't see the edit button.
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