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nature : the red flashing or blinking copper-gold powder. Water soluble. Slightly soluble in alcohol blue. Case was concentrated sulfuric acid yellow green, blue diluted. NaOH aqueous solution was added purple and dark purple precipitation. N, N-dimethylaniline Nitrosation, reduction, oxidation, purification, drying derived. For linen, silk fabrics, paper, biological, bacteriological and staining of the wood coloring. Also used in the manufacture of ink and color of amylin.
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