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Partition Coeficient Equation - HSN forum

# Partition Coeficient Equation

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### #1*sofax*

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Posted 09 December 2005 - 07:03 PM

I was wondering if anyone knew when using the equation which applies to partition coeficient whether it matters which way the ether and acid go?! like does K = ether/acid or acid/ether? Everywhere puts ether/acid yet I can't seem to find an explanation to why it is that way round!! any help would be appreciated!! thanx!!
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### #2YIC

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Posted 09 December 2005 - 11:16 PM

not sure, but doesn't it have something to do with with which immiscible solution is on top?

### #3HatingHighers

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Posted 10 January 2006 - 04:44 PM

The Partition Coefficient just gives you a ratio. ether/acid is probably always used as it gives a ratio of greater than 1 and so is easier to interpret than if it was acid/ether.

e.g.

ether/acid = 4/1, so 4 times as much of the substance will be found in the ether
acid/ether = 1/4, so acid contains 4 times less than the ether (more difficult to understand)

If that makes sense

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