disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate

disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate Suppliers list
Company Name: Colorants Chem Pvt Ltd  
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Products Intro: Product Name:Direct black 51
CAS:34977-63-4
Purity:99% Package:1 kg,5 kg, 10 kg,25kg and 1 MT
Company Name: Appex Dye Stuff Industries  
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Products Intro: Product Name:Direct black 51
CAS:34977-63-4
Purity:99% Package:1 kg,5 kg, 10 kg,25kg and 1 MT
Company Name: Synthesia, a.s.  
Tel: +420 466 821 111
Email: synthesia@synthesia.cz
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disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate Basic information
Product Name:disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate
Synonyms:disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate;Direct black 51 (C.I. 27720);C.I.Direct Black 51:C.I.27720
CAS:34977-63-4
MF:C27H17N5O7S.2Na
MW:601.505
EINECS:252-305-5
Product Categories:
Mol File:34977-63-4.mol
disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate Structure
disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate Chemical Properties
density 1.191[at 20℃]
Water Solubility 982.7mg/L at 20℃
Safety Information
MSDS Information
disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate Usage And Synthesis
Preparation3-Amino-2-hydroxybenzoic acid coupling, again diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.
Flammability and ExplosibilityNot classified
Properties and Applicationsblue gray. To black powder. Soluble in water, slightly soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid dyes for green, diluted into red sauce, precipitation. The dye solution for violet black, join after strong hydrochloric acid by purplish red color into red sauce, precipitation; Add thick hydrogen uranium oxide solution to dark purple, have precipitation. Water-soluble general, sensitive to that fights. Dyeing copper and iron ion in the blue light. Used for cotton, viscose and their blended fabric dyeing and silk, cotton or viscose fabric can be in directly on printing, also used in leather and fur and paper color. And disperse dyestuffs high temperature on polyester with bath/cotton blended fabric dyeing.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 2-3 4 4 2 2
AATCC 4 2 4 3 1
disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate Preparation Products And Raw materials
Tag:disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate(34977-63-4) Related Product Information
4-PHENYLAZO-1-NAPHTHYLAMINE DIRECT BLACK 51 disodium 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylate