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Topic: Removing pyridine from solvent  (Read 6705 times)

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Offline bhaskaran

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Removing pyridine from solvent
« on: August 04, 2007, 02:27:27 AM »
we are having mixture of methanol(40%)+pyridine(18%)+water(42%).How to seperate pyridine from methanol? Any solution is available.

Regards,
Bhaskaran.r
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Offline sjb

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Re: Removing pyridine from solvent
« Reply #1 on: August 04, 2007, 07:38:59 AM »
What kind of volume are you looking at? I seem to recall somewhere that MeOH does not form an azeotrope with water - if this is the case (and you don't get ternary azeotropes as well), could you not just distill it off?

See e.g. http://www.chem.queensu.ca/PROGRAMS/UG/Firstyearlabs/112&116/labman/manual/lab5/index.htm ?

Or what about pyridinium salt solubilities in MeOH / H2O - acidify the liquid??

S
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