i don't know what barium's problem was, but it definitely works with
the usual ketones. maybe 2,5-DMP2P is different.
there's one minor point where i have to disagree with chromic:
> If the oxime doesn't crystallize overnight, it ain't gunna...
full crystallisation can take 1-2 weeks, starting at day 2-3!
ps: you should note success by smell: the oxime, even when oiled out, has
that characteristic amine/oxime smell as opposed to the flowery ketone smell.
you can't mistake the two.
indole_amine: what are the boiling points of our oximes? distilling solids
can be quite annoying (if you don't have a short-path distillation thingie).