paradoxcycle said:If you look at "Physical Chemistry" by W.J. Moore, 4th edition, page 257, you'll
see a phase diagram for nicotine + water. It shows a large two phase region
above 60 C extending from ~5% to 80% weight % nicotine. This suggests that steam distillation can be used to obtain a pure product. Others might suggest
extraction with an organic solvent. The problem is that such an extract would
require a purification step. Many low molecular weight oils which are insoluble
in water can be obtained in nearly pure form via steam distillation. Steam
distillation works well with low molecular weight amines when the still pot is
made basic with hydroxide. Addition of base might be helpful in steam distillation of nicotine. Sorry I can't supply a documented procedure on short notice.
DMSO will dissolve just about anything and certainly tetrahydracannabinol, caffeine and nicotine. DMSO is well know for its ability to carry solutes through the skin.
how do we get to nicotine from a question about DMSO? am I missing something?
Anyways most nicotine containing products like patches contain nicotine salts, so base would be essential for liberating the freebase.
On the subject of DMSO there was an infamous incident of the TOXIC LADY in west coast America where a patient presented to ER, and was extremely sick and then died after using DMSO as a muscle rub, the ER staff treating her collapsed and so did several bystanders. one theory for the toxic woman was proposed ,I think by los Alamos, was that the DMSO had somehow become oxidised by her to Dimethyl Sulphate, rather unlikely IMO. More likely some one packing the DMSO got the two chemicals mixed up. still an interesting story..
http://www.gasdetection.com/MDS/m092198.html

