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Step 10Refine the toluene extracts
Now it's time to get a little more precise. Set aside the turkey baster and grab the eye dropper, which we will use from now on. As I said, the objective is to obtain a clear toluene solution, which we will accomplish by washing with water and filtering.
Use the eye dropper to remove the top toluene layer from all of your shot glass mixtures, transferring it to a new shot glass. Avoid sucking up the bottom water layer as much as possible. You should now have a shot glass full of still-murky toluene. Add a little bit of fresh water and stir it up really well with a stick. This will hopefully wash out some of the stuff that causes the emulsion.
Now, remove and discard the bottom (water) layer with the eye dropper. What's left behind is a cloudy toluene solution that we will clarify in the next step.
Use the eye dropper to remove the top toluene layer from all of your shot glass mixtures, transferring it to a new shot glass. Avoid sucking up the bottom water layer as much as possible. You should now have a shot glass full of still-murky toluene. Add a little bit of fresh water and stir it up really well with a stick. This will hopefully wash out some of the stuff that causes the emulsion.
Now, remove and discard the bottom (water) layer with the eye dropper. What's left behind is a cloudy toluene solution that we will clarify in the next step.
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