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Direct Black 56

Direct Black 56 Structure
Direct Black 56
  • CAS No.8003-57-4
  • Chemical Name:Direct Black 56
  • CBNumber:CB5969072
  • Molecular Formula:C36H22N7Na3O10S3
  • Formula Weight:877.76509
  • MOL File:8003-57-4.mol
Direct Black 56 Property
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal word
  • Hazard statements
  • Precautionary statements

Direct Black 56 Chemical Properties,Usage,Production

  • Preparation aniline diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.
  • Properties and Applications red light grey. Gray powder. Soluble in water for dark purple, not soluble in alcohol. The strong sulfuric acid in the green light for gray blue, diluted into purple. The dye solution to join strong hydrochloric acid have precipitation of dark; Add thick, hydrogen oxidation solution have dark purple precipitation. Cellulose fiber of dyeing, the dye well after sex is good, in the 80 ℃ temperature when the biggest affinity. Discharge sex is good, hard to sensitive. For the red light gray color. Dye in bath of copper, iron ion colored light basic unchanged, the SDC classification for a class B. Neutral and alkaline white are 5 levels. Mainly used for cotton, linen, silk, cellulose fiber fabrics such as glue the dyeing. Can also be used for leather, paper all the dyeing.
    Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
    Fading Stain Fading Stain
    ISO 3 4 4-5 3 2
    AATCC 3 5 5-6 3 4
Direct Black 56 Preparation Products And Raw materials
Raw materials
Preparation Products
Direct Black 56 Suppliers
Global(30)Suppliers
  • Supplier：
    AFINE CHEMICALS LIMITED
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  • Advantage：58
  • Supplier： Shanghai Orgchem Co.,Ltd.
  • Tel：+86-21-5877 1921
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  • Supplier： Merck KGaA
  • Tel：21-20338288
  • Email：ordercn@merckgroup.com
  • Country：China
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  • Advantage：58
Direct Black 56 Spectrum
8003-57-4, Direct Black 56Related Search:
  • 直接染料
  • 直接耐晒染料 (直接 L 型)
  • 染料
  • C36H22N7O10S3Na3
  • 直接耐晒灰LRN
  • 直接黑 RLN
  • 直接黑56
  • 8003-57-4
  • 2-Naphthalenesulfonicacid, 5(or 8)-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-8(or5)-[[4-(phenylazo)-6(or 7)-sulfo-1-naphthalenyl]azo]-, trisodium salt (9CI)
  • C.I.Direct Black 56:C.I.34170
  • Pyrazol Fast Grey 2R
  • Chlorantine Fast Grey RLN
  • C.I. 34170
  • 5(or 8)-[(7-Amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-8(or 5)-[[4-(phenylazo)-6(or 7)-sulfo-1-naphthalenyl]azo]-2-naphthalenesulfonic acid trisodium salt
  • Solar Grey 2R
  • Saturn Grey LRN
  • Pyrazol Grey RLN
  • C.I.Direct Black 56
  • C.I. Direct black 56
  • Vicorect Black MB.
  • Triamin Grey RLN
  • Solius Grey 2R
  • Hispaluz Grey BR
  • Direct Grey RLN
  • Direct Fast Black LBN
  • Dinamine Fast Grey BR
  • Atul Direct Light Fast Grey BR
  • 2-Naphthalenesulfonic acid, 5 (or 8)-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-8(or 5)-[[4-(phenylazo)-6(or 7)-sulfo-1-naphthalenyl]azo], trisodium salt
  • Grey LBN
  • Direct black 56 (C.I. 34170)
  • Direct Fast Greay RLN
  • Direct Black 56

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