Result of the chromatographic separation of a reaction mixture containing some elemental iodine.
Iodine is a quite spectacular thing in an organic lab, compared to most reactions. Since it’s deep color and high solubility in several solvents it is easily removed even if sodium thiosulfate is not possible to use. In this case the reaction products were washed with hexanes an the iodine eluted quite easily as seen on the above pictures.
It is interesting to see that most of the iodine is in the first few test tubes, even traces of this halogen could cause a strong color as seen on the right side of the picture where only traces is dissolved in the solvent.









