swim did a first trial with about 1,5 g starting codi.
1,2g KaCr2O7 did not dissolve well in 10ml water
so he took in another 10ml and shaked a bit then.
It then dissolved all well.
swim was a little confused about that german patent
which was stated with 20g Codi and 20g Dichromate.
So he thought it was the best to use the middle.
After all he got a dark brown liquid that is forming
now crystels from time to time.
The extarction with CH2Cl2 first formed an emulsion.
Don´t shake to hard in that way.
But you can break the emulsion with another load of
solvent or just waiting and slowly pipette out the
clearly yellow solvent(brown when dissolved in a small amount of solvent).
I´m waiting now for my Pd/C to go ahead with the
hydrogeneration.
oz is Australia, right?
swim comes from a european country where all good chemists
came from and now
with me they come from
.