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Details for China Direct Brown MM

Direct Brown MM

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Dyestuffs and Pigments/Direct Dyes

 Direct Brown MM
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Product description : Direct Brown MM Name:C.I.Direct Brown 2,C.I.22311 Molecular Structure: Double azo class C.I.Direct Brown 2,C.I.22311,CAS 2429-82-5,627.54,C29H19N5Na2O7S,Direct Brown M,Direct Deep Brown MN,Direct Brown MR Molecular Formula:C29H19N5Na2O7S Molecular Weight: 627.54 CAS Registry Number:2429-82-5   1.Properties and Applications: red light brown. Brown powder. Soluble in water solution is a deep red light brown, 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. Mainly used for cotton, such as glue of cellulose fiber dyeing and printing directly, can also be used for the pulp, leather dyeing and manufacturing color pigment sediment. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 5 4 2-3 1-2 1-2 AATCC 4 5 2 1-2 2   2.International similar brand Apollo Direct Brown M Atul Direct Brown MR Atul Direct Brown MY Atul Leather Brown DMR Bitamine Direct Brown MR Brown MR Brown NM Concorde Direct Brown M Concorde Leather Brown MRD Condirec Brown B Direct Brown M Direct Fast Brown M Direct Fast Brown MR
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