Cocaine is the main alkaloid obtained from the leaves resulting in the percentage with 0.5 to 1.5% variable.
The extraction is relatively simple, being able to make with items readily available reagents and not requiring the infrastructure of a laboratory for the process.
One of the most common method for obtaining cocaine is macerated coca leaves with lime for three days, then separating the active part of the coca leaf. This post is mixed with kerosene and liquid thus obtained is combined with sulfuric acid thereby obtaining a precipitate of the active substance sulfate. The next step is to undertake a dry substance obtained, and again it is combined with sulfuric acid and potassium permanganate, all to obtain a purified solution, filtering and adding more acid.
The solid product is separated and dry once you get the coca paste or cocaine base. As a last step we add the paste is dissolved in acetone and ether, then adding hydrochloric acid. This solution is filtered and alcohol added, yielding after 3 or 4 hours a precipitate crystalline solid known as “cocaine hydrochloride” with an approximate purity of 90% .-
Cocaine hydrochloride, is sold illegally in the form of small envelopes, which contain 0.5 to 1 gram of drugs, commonly known as “ravioli” .-
