January 01, 2025, 02:41:30 PM
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Topic: How would you buffer Dichloroacetic Acid with sodium bicarbonate to get...  (Read 8681 times)

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Offline Qaiphyx

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Sodium Dichloroacetate?

Offline Qaiphyx

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or would this not work? If not is there any other way to synthesize this? Its a fairly easy chemical to make from what Ive been told.

Offline Arkcon

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I'm not following your terminology a little bit ...

I'm guessing you want to neutralize DCA, and form it's sodium salt.

You also want a buffer.  That's fine, just neutralize it to within +/- one pH unit of it's pKa, whatever the references say it is and you'll have a buffer.  If you need another pH, then it will make a poor buffer.

But, I'd use NaOH, so I wouldn't get fizzing reagents.

Or maybe you have left out some nuance of your application?
« Last Edit: January 08, 2008, 07:30:19 PM by Arkcon »
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline Qaiphyx

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Yah thats exactly what I'm trying to do. Sorry Im not to familiar with all the proper terminology.

Isnt the Sodium Bicarbinate a buffer for it though?

Also, I know that if you mix chlorine with acetic acid and a proper catalyst(Not sure what, if anyone would know this proper catalyst please inform) It will produce Trichloroacetic Acid, how could I break the TCA down to DCA?

I can get DCA in pure form if i need to but if I could produce it from simple chemicals that would be most prime.

Im yet to find the pKa of NaDCA so far but for DCA its 1.25 and I know that the safest reaction thats spoken of uses light to drive the reaction. Any ideas of how that works?

Offline Qaiphyx

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K NaDCA is roughly around 7.4 pKa, Not sure if thats exact though. Would Sodium Bicarb be enough to buffer that?

Offline Arkcon

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Ummm... I didn't understand why someone posting to the chemical engineering forum missed out on a variety of mundane chemistry topics.  A little checking on wikipedia suggests to me that you intend to self-medicate with DCA.  I'm personally going to opt out on the rest of this discussion at this point.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline Qaiphyx

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Bah, all this "mundane" mumbo jumbo, its simply chemistry. Opt out if you will but ill find the answers I need. As long as all the steps are properly made in synthesizing a chemical are taken, its a safe procedure. None the less you got to where you are today with the knowledge you have because someone showed you the way. Whether you did it through college or not the only difference is a label. So why not just show me the steps.

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