Use 1 + 9
Add additional Bromide or Benzotriazole to alter the tones to the working solution - as above.
Hi all, Just tried to mix this concetrated solution, but fell in trouble - first batch had crystals of Hydroquinone after 1 week of storage, then Idecided to make another batch with ethyleneglycol added to prevent hydroquinone crystallization, this batch gave worse result - everything crystallized in one large ice-like piece.....
Does anybody know how to prevent crystallization? Or maybe there is some mistake in the formula?