I don't know. If you made a solution in water with 5g Borax - 0.4g Phenidone - 0.4g AA I think you would find the usual 9.5 or so borax pH. This working solution is much lower, and the only reason I can see for it is the glycerol. I'm working on a second batch with much less heating. I'll let you know.
Originally Posted by Murray Kelly