rdly, with a dilute solution of caustc, soda,potash, or other alkalies. The matter thus obtainedis passed into acidulated boiling water, then dried.It is then in a state of powder, with golden shades,soluble in alcohol, methyle, and other spirits, andthe solutions of which may be used directly for… … DISCOVERIES AND INVENTIONS ABROAD. Red Coal Tar Color.—A patent has been taken outby Wm. Spence, of Manchester, England, for makinga red coloring agent from phenic or carbolicacid, ob-tained from coal tar as follows :—About 23 ft. ofphenic or carbolic acid ; from about 10 to 20 ft. ofoxalic acid ;…
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