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how to remove dichloromethan from aqueous solution (<10 ppm)
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Topic: how to remove dichloromethan from aqueous solution (<10 ppm) (Read 6937 times)
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karl26
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how to remove dichloromethan from aqueous solution (<10 ppm)
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on:
September 15, 2007, 04:32:05 AM »
Hi,
I need to remove dichloromethan from aqueous solutions (the quantity has to be < 10 ppm)
does anyone know a procedure which is suitable to work on 1-2 liters of aqueous solution ?
I have a lot of aqueous solution, so I can lose some. I can heat it as well.
many thanks
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amallab
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Re: how to remove dichloromethan from aqueous solution (<10 ppm)
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Reply #1 on:
March 06, 2008, 08:12:51 AM »
Check a chemistry handbook to see if dichloromethane forms an azeotrope with water.If so you could try steam distillation. Blow live steam into your solution in a round-bottomed flask and the solvent should come over with the condensate.
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tripton
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Re: how to remove dichloromethan from aqueous solution (<10 ppm)
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Reply #2 on:
March 13, 2008, 10:36:11 AM »
The concentration is very low.
Wich final concentration do you expect?
If the distillation doesn´t work, how about Liquid-Liquid extraction and then you can distillate the other solvent.
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Last Edit: March 13, 2008, 10:48:37 AM by tripton
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how to remove dichloromethan from aqueous solution (<10 ppm)