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Black cocaine, also known as Coca Negra, is a mixture of regular cocaine base or cocaine hydrochloride with various other substances. These other substances are added * to camouflage the typical appearance (pigments and dyes, e.g. charcoal), * to interfere with color-based drug tests (mixing thiocyanates and iron salts or cobalt salts forms deep red complexes in solution), * to make the mixture undetectable by drug sniffing dogs (activated carbon, absorbs trace odors). Since the result is usually black, it is generally smuggled as toner, fingerprint powder, fertilizer, pigment or metal moldings. The pure cocaine base can be recovered from the mixture by extraction (freebase) or acid-base extraction (hydrochloride) using common organic solvents such as acetone. 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.〔Jonathan Franklin, (Pinochet 'sold cocaine to Europe and US' ), ''The Guardian'', 11 July 2006〕 Black cocaine was detected in Bogota, Colombia in May 1998. In 2008, a new type of black cocaine was discovered by police in Spain. It had been manufactured into rubber-like sheets and made into luggage. == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Black cocaine」の詳細全文を読む スポンサード リンク
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