thanks man youv been a great help. much appreciated.

i actually just noticed how badly i worded that last post of mine. you answered everything but what i meant by "will it make my spice cleaner if i disolve it all in naptha and re freeze precip ?" was separate - xylene aside, if swim just took his spice (of yellowish color) and disolved it in a very small amount of warm naptha, then just freeze precipped as usual, would it clean the spice in any way at all - would the contaminants that changed the color of the spice stay in the naptha as the spice falls out ?