It is cultivated in Andean- Amazonian region. Not cultivated in India. Erythroxylum coca leaves are taken and then the extraction process is done. Sulphuric acid H2SO4 is added and is then left for sometime after pressing the leaves with walking. After that the paste is heated up in a container and calcium carbonate CaCO3 is added. Then Terosene is added. Then more sulphuric acid H2SO4 is added to the solution.
Coca base paste is now ready. After that the purification is done by heating the paste further and adding Potassium Permangate KMnO4. Cocaine base is now ready .
After that crystallisation is done by adding drops of Ammonium Hydroxide NH4OH.Acetone (CH3)2CO is added and the HCL hydrochloric acid is added.
Cocaine Hydrochloride is now ready. Adulteration is done and the it is packed and smuggled.