-500g acaciaDimitrius said:mumbles said:69ron has a good post on this where he explains to swim a ph of 10.x is enough to freebase almost all of the spice. So swim tested it out and then after extraction dumped a shitload of lye in there and extracted again and only 200mg extra came out (from 500g bark) which is normal for even non ultra basified extractions (diminishing returns and all that). So there seems to be a lot of misinformation around about sodium carbonate. Swim used shellite (naptha) and there were no dramas in fact he uses it in washes.
would SWIY mind sharing:
- how much mhrb?
- how much acidic solution (before and after reduction)?
- cooking or long soak?
- was plant matter filtered out?
- amount of sodium carbonate added to acidic solution?
SWIM will be starting an A/B tomorrow to see how sodium carbonate fairs for him, and the answers to these questions would help SWIM suss out a few details.
you know, if SWIY doesn't mind...
-~7-8L before reduction, ~600ml after
-3x 2hr cooks
-yes all plant matter was filtered out
-as much as swim could. its weaker than NaOH so expect to use heaps and heaps and test the pH often
remember to keep the solution hot and the naptha hot during extraction spice needs the extra push to get in there it seems. good luck