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Product Description: Direct Brown 2Basic info C.I NODirect Brown 2CAS NO2429-82-5Other namesDIRECT FAST BROWN MEINECS No219-391-6Strength100%MF:C29H19N5Na2O7SAppearanceBrown powderH.Scode3204140000Brand nameBITEStorageCool dry placeFeaturesSoluble in water solution is a deep red light brown,Website:://.dyestuffchemical.com, soluble in ethanol is palm red light, soluble in soluble fiber element for red light brown, slightly soluble in acetone, insoluble in other organic solvents.The strong sulfuric acid for purple, diluted red light brown, precipitation; In nitric acid for orange brown. The dye solution to join strong hydrochloric acid for dark brown; Add thick sodium hydroxide solution for orange brown.Cellulose fiber of dyeing, dye devoured rate is good, the temperature of 60 to 80 ℃ in the biggest affinity, discharge of dyeing with copper sulfate after treatment, it can improve the color fastness.ApplicationMainly used for cotton, such as glue of cellulose fiber dyeing and printing directlyAlso be used for the pulp, leather dyeing and manufacturing color pigment sedimentPacking
Direct Brown 2