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Direct Black 19

Direct Black 19 Suppliers list
Company Name: TIANJIN XIANGRUI DYESTUFF CO.,LTD
Tel: +undefined13902081959
Email: jinyanchun@xiangruidye.com
Products Intro: Product Name:Direct Black 19, DIrect Fast Black G
CAS:6428-31-5
Purity:99% Package:25kg;2.00;USD
Company Name: Shanghai Daken Advanced Materials Co.,Ltd
Tel: +86-371-66670886
Email: info@dakenam.com
Products Intro: Product Name:Direct Black 19
CAS:6428-31-5
Purity:99% Package:100g ;1KG ;5KG 25KG
Company Name: Hubei xin bonus chemical co. LTD
Tel: 86-13657291602
Email: linda@hubeijusheng.com
Products Intro: Product Name:Direct black 112
CAS:6428-31-5
Purity:0.99 Package:5KG;1KG
Company Name: Winchem industrial co limited
Tel: +86-0086-574-83851061 +86-13003762012
Email: lucyhu@win-chemical.com
Products Intro: Product Name:Direct Black 19
CAS:6428-31-5
Purity:1 Package:25kg
Company Name: CONIER CHEM AND PHARMA LIMITED
Tel: +8618523575427
Email: sales@conier.com
Products Intro: Product Name:direct black 19
CAS:6428-31-5
Purity:99% Package:1kg

Direct Black 19 manufacturers

  • Direct Black 19
  • Direct Black 19 pictures
  • $0.00 / 25kg
  • 2022-12-30
  • CAS:6428-31-5
  • Min. Order: 25kg
  • Purity: 1
  • Supply Ability: 5mt
  • Direct Black 19
  • Direct Black 19 pictures
  • $1.00 / 1KG
  • 2019-12-24
  • CAS:6428-31-5
  • Min. Order: 1KG
  • Purity: 98%HPLC
  • Supply Ability: 10t
Direct Black 19 Basic information
Product Name:Direct Black 19
Synonyms:disodium 4-amino-3,6-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate;Black G;Atul Direct Black VG;Benzo Fast Black G;Condires Black AN;Kayarus Black G;Sumilight Black G;Tertrodirect Viscose Black GTN
CAS:6428-31-5
MF:C34H30N13NaO7S2
MW:819.81
EINECS:229-208-1
Product Categories:Organics;Dyes and Pigments
Mol File:6428-31-5.mol
Direct Black  19 Structure
Direct Black 19 Chemical Properties
Boiling point 1379℃[at 101 325 Pa]
density 1.49[at 20℃]
vapor pressure 0Pa at 25℃
Water Solubility 22.67g/L at 20℃
LogP-1.5 at 20℃
CAS DataBase Reference6428-31-5(CAS DataBase Reference)
EPA Substance Registry SystemC.I. Direct Black 19, disodium salt (6428-31-5)
Safety Information
Hazardous Substances Data6428-31-5(Hazardous Substances Data)
MSDS Information
Direct Black 19 Usage And Synthesis
Preparation4-Nitrobenzenamine (2 Moore) diazo, one in acid conditions, a in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid (1 Moore) coupling, and then will the nitro reduction, diazotization, again with Benzene-1,3-diamine (2 Moore) coupled.
Flammability and ExplosibilityNon flammable
Properties and Applicationsgreen and black. Black powder. Soluble in water for green light black, solubility of 100 g/L (80 ℃), slightly soluble in ethanol and acetone. The strong sulfuric acid in the green light for black, dilute red after black precipitation; In nitric acid to dark brown. Dyes and microstructure of sulfuric acid solution 10% red; Add thick sodium hydroxide solution for green light blue. Copper ions in dyeing color shade the green, iron ion a slight change in color. Used in viscose of dyeing and printing. In the cotton knitwear, blankets, flannelette, silk, viscose, silk that the fabric, wool/viscose fiber blend fabrics can be used. Can also be used in leather, paper and electrochemical aluminum color.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 3 3-4 2 2
AATCC 4-5 3 3 2-3 2
Tag:Direct Black 19(6428-31-5) Related Product Information
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