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Chemistry:The Central Science
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DIR Return to: General Organic Chemistry
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#Post#: 346--------------------------------------------------
Oxidation of ethanol
DIR By: Chris
Date: June 27, 2012, 9:26 am
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Just a quick question: is it possible to use sodium hypochlorite
to oxidise ethanol to acetic acid? Pls give reasons.
#Post#: 348--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Michel
Date: June 28, 2012, 7:10 am
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--- Quote from: Chris link ---
>
> Just a quick question: is it possible to use sodium
hypochlorite to oxidise ethanol to acetic acid? Pls give
reasons.
>
--- End Quote ---
Think about the ClO group. And the fact that such oxidation
requires a H+ reactant.
What will happen to the hypochlorite ion in the presence of H+ ?
#Post#: 351--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Chris
Date: July 3, 2012, 7:44 am
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The ClO- reacts with the H+ to form HClO ?
#Post#: 354--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Michel
Date: July 3, 2012, 7:53 am
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Not exactly, but on the right track. Recall that HClO is
unstable in acidic solutions...
#Post#: 359--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Chris
Date: July 7, 2012, 3:41 am
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I see it now
The H+ reacts with ClO- to produce chlorine
#Post#: 362--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Michel
Date: July 7, 2012, 5:15 am
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yes. That's correct
#Post#: 368--------------------------------------------------
Re: Oxidation of ethanol
DIR By: saikat
Date: July 8, 2012, 8:56 am
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i am new in the forum.
#Post#: 369--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Michel
Date: July 8, 2012, 12:08 pm
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--- Quote from: saikat link ---
>
> i am new in the forum.
>
--- End Quote ---
Welcome!
#Post#: 377--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Michel
Date: July 10, 2012, 6:41 am
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recently, I asked a friend this question, and I was told
chloroform, acetaldehyde and sodium formate are products, (I
will look up details later)
In any case, the reaction conditions must not be acidic
#Post#: 414--------------------------------------------------
Re: Oxidation of ethanol
DIR By: Potla
Date: July 19, 2012, 8:58 am
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Ethanol, in presence of OH- and Cl2, gets oxidised to CH3CHO,
which gives positive haloform test in such conditions, producing
chloroform and Na-formate. The reaction conditions are basic
though, because the mechanism includes extraction of the
alpha-hydrogen atom of CH3CHO.
So, the CH3CH(OH)- group also gives positive haloform test.
Anyway, reaction of Ca(OCl)2 with EtOH is the laboratory method
of preparing Chloroform. :)
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