The least soluble will precipitate out first so you would just have to watch it is probably quite easy to tell the difference between them seeing one is a goo the other a solid granule. What is the solubility of tartaric acid in acetone?
Have you thought of just mixing them together drop wise on a plate?
link.springer.com/article/10.1007/s10953-013-9960-6 if you can get access to this report then it may answer some questions, if tartaric acid is very soluble in acetone then you could simply evaporate in a bowl and watch the dmt tartrate form a ring around the bowl as it evaporates when the solution becomes more concentrated.
Quote:Solubility: Easily soluble in cold water, hot water, methanol. Soluble in diethyl ether. Solubility in Water: 1g/0.75 ml at room temperature. 1g/0.5 ml boiling water 115 g/100 ml @ 0 C 126 g/100 ml @ 10 C 139 g/100 ml @ 20 C 156 g/100 ml @ 30 C 176 g/100 ml @ 40 C 195 g/100 ml @ 50 C 217 g/100 ml @ 60 C 244 g/100 ml @ 70 C 273 g/100 ml @ 80 C 307 g/100 ml @ 90 C Solubility in methanol: 1 g/1.7 ml Solubility in ethanol: 1 g/3 ml Solubility in propanol: 1 g/10.5 ml Solubility in ether: 1 g/250 ml Also soluble in glycerol. Insoluble in chloroform
I would expect its solubility in acetone to be somehwere between methanol and water.
Infundibulum wrote:The solubility of dmt tartrate in acetone is around 3.5mg/ml acetone.
Much less than tartaric acid you may even be able to freeze precipitate dmt tartrate.