"Subsalt" Quotes from Famous Books
 ... solution, or by soaking the paper in them, as in Sella's process, previously to the application of the metal cyanic, mellonic or other toning baths. Alkalies and alkaline carbonates may also be used to remove the chromic acid, and leave a subsalt, or the very stable oxide or carbonate of manganese, which may be peroxidized by the use of chloride of lime, peroxide ...
— Photographic Reproduction Processes • P.C. Duchochois |
