A Little History
Prior to the early 1980's, most clandestine manufacture of methamphetamine used phenyl-2-propanone (also called P2P) as the starting material. Other chemicals required were methylamine, mercuric chloride, aluminum foil or aluminum wire, isopropanol, sodium hydroxide, a suitable solvent, salt, and acid (e.g. hydrochloric acid). Other variations used some different chemicals. A typical recipe [from: Dallosta, K.L., Clandestine Laboratory Manual, Sacramento CA, Western States Information Network, 1985] involved the following steps:
First mix isopropanol and sodium hydroxide in a reaction vessel. Add mercuric chloride and aluminum foil. Then heat the mixture to boiling.
Add P2P and methylamine and boil for four hours.
Pass reaction mixture through filter paper to remove contaminants.
Apply heat to filtered reaction product to remove excess methylamine
Salt wash the product (to kill the mercury), followed by acidification, which forms crystals of methamphetamine hydrochloride. The methamphetamine is purified by re-dissolving in a solvent using a separator funnel and recrystallized.