1,5-Dinitroanthracene-9,10-dione or 1,8-Dinitroanthracene-9,10-dione?and 1,5-Dinitroanthracene-9,10-dione?mixture with concentrated sulfuric acid, sulfur and Boric acid treatment, and then into sodium salt.
Properties and Applications
purplish blue (chromium). Slightly soluble in ethanol, in concentrated sulfuric acid to dark purple, red brown after diluted.
