endshuldigung, apologise my horrible speling, but I learnd english with films and a lot with the hive...for my is dificult to express myself propely...I mean: swim solvent (cloroform) was in swim dream black because it was mixed whith some things that are in part soluble to in water making a emulsion, but swim washed the emulsion with the solvent normaly, swim want to mean that the water of the washing turn black, than with subsequent washing the colour of THE WATER (not so saturated salt Mili-Q)turn more pale, swim in his dream wash the solvent+alcaloid mixture bis the water of the washing turn transparent, so swim thing the product become more pure...it is right!
thanks in advance