Quote Originally Posted by gmikol View Post
It seems like we're transfering all of the health and environmental handling concerns from the dichromate to the permanganate.
That's a very good point, but if you look at the clearing formula A, it is a 0.6% solution of potassium permanganate which is then diluted 1:20 for use.

If we assume we're using a tray and a big print, requiring 1 liter lets say, thats only 0.3225 grams of K-permanganate, whereas a K-dichromate tray sensitizer could require as much as 50 grams.