I have had my previous DCM,pTSA experiment.
It was 90 minutes 50/50 isomers with 2% cbd left.
I just wanted to get into the details - and as i do have my own chromatography machine to play with - it will be a lot of pics.
Last time in 90 minutes, DCM (2:1 ratio) , PTSA - I got my first ever conversion. I got nice twin-peaks of the isomers - and I wanted to see for myself how it ended up there. And as I happen to have an HPLC UV to play, I wanted to see how it got there.
(Warning, lots of pics) :
DCM:
CAS: 75-09-2
Molar mass: 84.93 g/mol
Water content: 0.02%
Producer: Thomas Baker
pTSA:
CAS: 6192-52-5
Molar Mass: 190.22 g/mol
Producer: Sigma-Aldrich™
CBD:
CAS Number: 13956-29-1
Molar Mass: 314.46 g/mol
Producer: —
100ml DCM : 50gr CBD Ratio
0.5gr (1% PTSA)
Timings: diluting 0.5 ml to 25ml methanol - test ph and analyse.
Methodology:
100ml dry DCM : 50gr CBD (2:1 ratio)
1% (0.5gr pTSA)
RT (21)
Last time it was 90 minutes 50/50 isomers with 2% cbd left. So
Took a sample of 1 couple drops every 15 minutes, and starting specs:
Column 150*4.6
Test timings(mins) : 0,15,30,45,60,75,95. Cause of DF - last 2 chromos extended to 10 mins.
![IMG_9252|690x319]
(upload://wnLO88YEfvB0F5D5gkQlsuQpkCv.jpeg)
