yes sorry 0.5% is correct,

Swims bark is from www.juremaincense.com

swim orders it from there because it is in the same province of same country, very convenient, and ships in 2 days.

nothing has been thrown out, and like stated in my above post, swim working with 2 volumes of naphtha, while one is soaking in bark solution, the other is freeze preciping, back and forth.

I agree 100ml is too much, but with little equipment right now, its hard for swim to seperate 50ml of naptha from a wide jar lol

althought swim does own a tall and narrow graduated cylinder which he hopes to get back from his friend, too pour offthe top of the nahtha and some bark solution, allow it to settle, then siphon the naphtha from that

ive searched the suppliers section but cannot find anything specific on swim's bark source

can anybody else confirm a good yield from bark from www.juremaincense.com?

you guys are great, all this info in such a short time =D