MEASURE FREE FATTY ACID content of your oil: Mix 1 ml oil with 10 ml Isopropyl alcohol = 2 drops phenolthalian solution (available in a hobby shop chemistry set suppliers). Drop wise add 0.1% lye solution ( 1 gm lye in one litre water ) until the solution stays pink for 10 seconds. (20 drops = 1 ml) Record the millilitres of 0.1% lye solution used.
Methanol You will need 200 ml of methanol per litre of Hemp Seed oil. Methanol may be purchased as Drigas available at most automotive stores, read the label for methanol. Also Methanol is available from racing stores. Avoid hardware store methanol (wood alcohol) as it may contain excessive water content...CONTINUED