![]() In 2008, a new type of black cocaine was discovered by police in Spain. īlack cocaine was detected in Bogota, Colombia in May 1998. ![]() It was reported that in the mid-1980s Chilean dictator Augusto Pinochet ordered his army to build a clandestine cocaine laboratory in Chile where chemists mixed cocaine with other chemicals to produce what Pinochet's former top aide for intelligence Manuel Contreras described as a "black cocaine" capable of being smuggled past drug agents in the US and Europe. A second process is required to convert cocaine base into powdered cocaine hydrochloride. The pure cocaine base can be recovered from the mixture by extraction (freebase) or acid-base extraction (hydrochloride) using common organic solvents such as methylene chloride or acetone. Since the result is usually black, it is generally smuggled as toner, fingerprint powder, fertilizer, pigment, metal moldings, or charcoal. to make the mixture undetectable by drug sniffing dogs ( activated carbon may sufficiently absorb trace odors).to interfere with color-based drug tests (mixing thiocyanates and iron salts or cobalt salts forms deep red complexes in solution),. ![]()
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