ive known people to cut their dope (black tar) with bearing grease, burnt sugar, baking soda (yea baking soda in tar). n those are just people that I know. before it even hits the states, shoe polish is a common cutting agent:rolleyes:
I've read you can find dirt, glass and all kinds of shit.
'This is as complete and as accurate as I can remember, it has been something like 9 years since I have used heroin. The process I used for purification was straight forward. Diacetylmorphine can exist in two forms, an insoluble base, or a soluble salt. Often it contained a plethera of other agents like pieces of broken glass, pieces of foil, dirt, wood, metal, mannitol, lactose, maltose, sand, you get the idea.
The first stage of the process I used was to make sure the diacetylmorphine I received was totally converted to a soluble hydrochloride salt. The heroin I usually received was a brown powdered heroin, sometimes off white, very little vinegar smell. Today all you can find is a black crud that reeks with a vinegar (acetic) odor. The way I made sure it was a soluble salt was to drop enough 28% hydrochloric acid to make it wet. This insured that I would not waste any of the available drug, but would remove most if not all of the cut. I think that it would be better for me to detail it in a procedural manner. FYI, hydrochloric acid can be purchased in gallon jugs at hardware stores under the name Muriatic acid, 28%.'Erowid Psychoactive Vaults