Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione, chloro derivs. Chemical Properties

EPA Substance Registry System

C.I. Vat Blue 18 (1324-54-5)

Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione, chloro derivs. Usage And Synthesis

Preparation

will Dinaphtho[1,2,3-cd:3′,2′,1′-lm]perylene-5,10-dione?in solvent chlorinated, the introduction of at least three chlorine atom.

Properties and Applications

red light blue to red light navy blue. Dark blue powder. Etanol and insoluble in water, soluble in Acetone, Nitrobenzene, 1, 2, 3, 4 – Tetrahydronaphthalene and Xylene, slightly soluble in benzene. In concentrated sulfuric acid to red light purple, after dilution for blue purple, have precipitation. Alkaline reduction leuco for green light blue; Acid reduction leuco for red light purple. This product to cotton direct sex is very good, used for cotton fiber dyeing, also can be used for cotton fabric direct printing, resist printing and discharge printing, but also can be used for viscose and silk fabric dyeing.

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