Vat Green 9 CAS No.6369-65-9

Dynathrene dyes offer excellent fastness to washing, light and bleaching for cellulosic fiber. Dynathrene C.I. Vat CAS No. Characteristics Black BB Green 9 6369-65-9 Dull Green Properties and Applications:   deep green. Black powder. Etanol and insoluble in water, soluble in 2 – Chlorophenol, 1, 2, 3, 4 – Tetrahydronaphthalene and Xylene, slightly soluble in Acetone, Chloroform, Pyridine and Toluene. In concentrated sulfuric acid to dark purple, dilution after dark purple precipitation; In concentrated nitric acid for SAP green. Alkaline reduction leuco for purple; Acid reduction leuco for wine. Mainly used for cotton fabric dyeing, suitable for suspension pad dyeing. The leuco used for dyeing yarn. Don’t the bleaching solution treatment dye light color, the chlorine bleaching…