Hello!

I have just started a third pull with ACRB using q21q21's tek.
My solvent is heptane.

I am however getting low yields. The first pull was 48 hours after adding lime: 100 mg, the second pull made immediately after, yielded 260 mg. Currently waiting on the third pull (72 hours) to crystallize.


ACRB has the reputation for being a high yield material. Any pointers on why such low yields?


Thank you!


EDIT:
I'm thinking I may not have used enough heptane to do the first two pulls. I used 300 ml for the third and it's starting to crystalize nicely. The yield already looks higher than the previous two.