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SWIM just got a 1L bottle of toluene with xylene. He could not find a product containing only toluene or only xylene, and the Zippo Lighter Fluid that SWIM needs for the Non-Polar Extraction step is so absurdly expensive it cannot be used for defatting.

SWIM read some forum posts about defatting but is still confused about what it means. Can somebody please explain here to SWIM the process of defatting that people recommended?  What exactly should SWIM do before the basification? This defatting step is not shown in marsofold's tek which swim is using.


Update: SWIM just learned that the defatting step refers to mixing the solvent with the acidic juice, shaking it and sucking up the solvent which now should contain the impurities and discarding it. How much solvent should be used for defatting ?


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