Van Dyke Reducer

Wynn White's article on VDB lists:

Potassium Ferricyanide .25 gm (one micro spoon used for
stirring coffee)
Potassium Bromide .2 gm (10% solution 2 ml.)
Hypo 5 gm
water to make 1000 ml.

as the formula for Van Dyke Brown reducer. I don't have Potassium Bromide on
hand. Is there something I can use as a substitute? Is there another way to
reduce a VDB?

~m
Received on Fri Dec 16 16:32:40 2005