Heroin black Tar


Black Tar as a type holds a variable admixture morphine derivatives—predominantly 6-MAM (6-monoacetylmorphine) which is another result of crude acetylation. The lack of proper reflux during acetylation fails to remove much of the moisture retained in the acetylating agent, glacial acetic acid.

Black tar  are impure morphine diacetate. Other forms of heroin require additional steps of purification post acetylation. With Black Tar the product’s processing stops immediately after acetylation. Its unique consistency however is due to acetylation without a reflux apparate.