Problem in adjust PH of the BHA toner.
Hello everyone. I dissolved 2% Salicylic Acid in Butylene Glycol and Propanediol with heat. It was completed dissolved and turn to a clear liquid, I added Polysorbate 20 to S.A liquid. Then I heated the water with EDTA , and mixed both together. It still be dissolved, but when I adjust the PH with TEA ( about 0.5%), the S.A turned recrystallization totally. People intellectual here please let me know, what can I do to fix or remake the new batch with any changing. THANKS IN ADVANCE.