| Identification | Back Directory |  [Name]
  DIRECT BLACK 22 |  [CAS]
  6473-13-8 |  [Synonyms]
  CI 35435 Benzonerol VS Saturn Black A Solar Black NF Ka-yarasBlackB Benzonerol VSF Direct Black CA Direct Black FG DIRECT BLACK 22 CuproqixBlackNF Kayarus Black B Pyrazol Black NF Diazine Black GF Diazol Black TRA Triasol Black CA DiazolFastBlackJ ChlorazolBlackGF Direct Black NBR Fast  Black  VSF Cibatix Black E-R C.I.Directblack22 DirectfastblackGF DirectlightblackGF Vicorect Black FF. Directblack2BH/conc Direct Fast Black B Dycosdirect Black GF Benzo Cupro Black BV Direct Black 22,pure Carbide Fast Black G Rifa Direct Black VSF Direct Fast Black VSF Atul Viscose Black NAR Tertrodirect Black GVSN C.1.DirectBlack22(35435) PONTAMINE FAST BLACK PGR Aizen Direct Fast Black B Everdirect Fast Black B160 Best Direct Fast Black 2BR Direct Fast Light Black GF Hodgsons Kayarus Black B300 Direct black 22 (C.I. 35435) Concorde Direct Supra Black B320 2-naphthalenesulfonicacid,6-[(2,4-diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diam inophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl 2-naphthalenesulfonic acid, 6-[(2,4-diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl 2-Naphthalenesulfonic acid, 6-(2,4-diaminophenyl)azo-3-4-4-7-(2,4-diaminophenyl)azo-1-hydroxy-3-sulfo-2-naphthalenylazophenylamino-3-sulfophenylazo-4-hydroxy-, trisodium salt 6-[(2,4-diaminophenyl)azo]-3-[[4-[p-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthyl]azo]anilino]-3-sulfophenyl]azo]-4-hydroxy-2-Naphthalenesulfonic acid, trisodium salt Trisodium 6-[(2,4-diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]phenyl]amino]-3-sulphonatophenyl]azo]-4-hydroxynaphthalene-2-sulphonate trisodium 6-[(2,4-diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]phenyl]amino]-3-sulphonatophenyl]azo]-4-hydroxynaphthalene-2-sulphonate 6-[(2,4-Diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sodiosulfo-2-naphthalenyl]azo]phenyl]amino]-3-sodiosulfophenyl]azo]-4-hydroxynaphthalene-2-sulfonic acid sodium salt |  [EINECS(EC#)]
  229-326-3 |  [Molecular Formula]
  C44H32N13Na3O11S3 |  [MDL Number]
  MFCD00078136 |  [MOL File]
  6473-13-8.mol |  [Molecular Weight]
  1083.97 |  
 | Hazard Information | Back Directory |  [Chemical Properties]
  black powder |  [Uses]
  Direct Black 22 is a polyimidazolium salt and an organic dye used in the textile industry. Direct Black 22 is considered a water pollutant, and is removed from wastewater by degradation. |  [Preparation]
  5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? (2 Moore) coupled, then double nitriding, and  Benzene-1,3-diamine (2 Moore) coupled. |  [Properties and Applications]
  green and black. Blue gray powder. Soluble in water for violet black. The strong sulfuric acid for violet black, dilute black light after brown precipitation; In nitric acid solution for the red light brown in, precipitation. The dye solution to join strong hydrochloric acid have brown light black precipitation; Add thick sodium hydroxide solution for dark blue light red. Mainly used for cotton, viscose, wool/stick,nylon/rayon blended fabric dyeing and printing, also used in leather and paper dyeing.
 
 
  
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    Standard
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    Acid Resistance
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    Alkali Resistance
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    Light Fastness
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    Soaping
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    Water
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    Fading
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    Stain
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    Fading
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    Stain
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    ISO
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    5
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    4
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    4
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    3
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    3
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    | 
   
  
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    AATCC
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    5
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    4-5
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    5-6
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    3
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    | 
   
    3
    | 
   
    | 
   
 
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