Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 693
oride (which will be n.creor less colored by the dyestuff). (2) Testing for Salt in Magenta.—Dissolve a small quantity of the puredye in water, and test with silver nitrate as above. As the dye itself isthe hydrochloride of the color-base, a precipitate of silver chloride will beformed, though no… … FiG. 296.—Gaufring and Embossing Machine. lated with a few drops of nitric acid, and test with silver nitrate; no pre-cipitate will be produced. Repeat this test, using a sample of Magentacontaining common salt and note the formation of a precipitate of silvercliloride. (3) Testing for Salt in…
Dyes and dyeing · Textile fabrics
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