lactic acid , of all !...wiki's at 3.6 saturated.
is wiki's reference to industrial use age ! needs review.
the cleaner reviewed would be higher....near 5 ?
Lieb...what is the old book of home brew chemicals ? is this tome on your shelf ? I searched for it several years ago too some time....not or then currently popular in searching numbers. there may be a strong HB anti ionic solid solution ...