Oh, and another thing, this is really important so pay the fuck attention!
When you add alcohol or acetone to bleach, not much will happen at first, it takes a little while for the reaction to take off... it is very exothermic!
Now, you may be looking at the half gallon of 5% chlorox thinking to yourself, shesh, if this was more concentrated, I wouldnt be having to use a half gallon of bleach to process a shot glass full of alcohol.
Well, if you can find 10% bleach at the pool shop then you could use it.
RESIST the urge to try pouring alcohol onto a strong solution Calcium Hypochlorite bleaching power or other even strong Soduim Hypochorite.
In higher concentrations the shit gets HOT!
It might not get hot right away, but once the chain rxn gets rolling, watch out!
The temperature will easily surpass the boiling point of the chloroform and it will evaporate away into the air.
Oh well, you tell yourself, I'll just do it in a sealed container... DO NOT DO THIS! It is a bomb! It will blow up. You will get hurt. You have been warned.
Just play it safe and use the dilute bleach. The chloroform sinks to the bottom anyway so it will be easy enough to separate. Please heed my advice.