Democratic Sentinel, Volume 5, Number 12, Rensselaer, Jasper County, 29 April 1881 — New Mode of Tanning. [ARTICLE]

New Mode of Tanning.

A new process of tanning is extensively used in Germany. Bark is wholly dispensed with, and inorganic compounds take its place. The new process requires from four to six weeks for its completion, and the particular feature is

described to be the action of chromic acid, for the generation of which a number of substances, soluble in water, are brought together so as to effect the decomposition of bichromate of potash.