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Topic: Single Vs. Multiple Extraction (Kd Determination)  (Read 20097 times)

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Offline maxxed

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Single Vs. Multiple Extraction (Kd Determination)
« on: February 19, 2008, 12:28:19 PM »
When extracting an organic solute from a solvent, would it be better to use single extraction or single?  or would it even matter?
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Offline ARGOS++

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Re: Single Vs. Multiple Extraction (Kd Determination)
« Reply #1 on: February 19, 2008, 06:16:08 PM »

Dear Maxxed;

If you are talking about the same total amount of solvent in both cases “Multiple Extraction” with several smaller portions will always bet the “Large Single One”.
You should be able to calculate that with the “Distribution Ratio” or “Partition Coefficient”.
(see on Wiki.)


Good Luck!
                    ARGOS++

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Offline sjb

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Re: Single Vs. Multiple Extraction (Kd Determination)
« Reply #2 on: February 22, 2008, 06:04:44 AM »
There's a fairly decent demonstration of the maths behind the problem at http://www.milomuses.com/chemicalmusings/?cat=35

S
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Offline ARGOS++

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Re: Single Vs. Multiple Extraction (Kd Determination)
« Reply #3 on: March 05, 2008, 06:26:57 PM »

Dear Maxxed;

For Calculation on “Single Extraction” vs. “Multiple Extraction” there is an Extraction Example on:   "Solubility Problem (Extraction!)”.


Good Luck!
                    ARGOS++

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