Two different ketone samples have been tested for bisulfite adduct formation. Both formed the bisulfite, but :
1) Sample A initially did not formed anything, even after shaking a lot and letting inside freezer for a while. Let it sit for a few days, nothing, then added a bit more ketone, it then formed the xtals in I guess less than half an hour.
2) Sample B did not form the xtals initially, then let it sit for a while, next day here they are.
In both cases, xtals forming both at the top and bottom, everything frozen inside the test tube, then loose again after shaking. Xtals look clean, just a bit like chicken fat on the top. In both cases, ketone not 100 % pure, but not quite impure either. Planning to make more, combine and re-distill before amination.
Does this looks like good adduct ? Ketone OK ?