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Direct Black 19

Name:C.I.Direct Black 19,C.I.35255

Molecular Structure: Multi-azo class

C.I.Direct Black 19,C.I.35255,CAS 6428-31-5,839.77,C34H27N13Na2O7S2,Direct Black L-3BQ,Direct Fast Black,Direct Fast Black FF,Direct Fast Black G,Pergasol Black G

C.I.Direct Black 19,C.I.35255,CAS 6428-31-5,839.77,C34H27N13Na2O7S2,Direct Black L-3BQ,Direct Fast Black,Direct Fast Black FF,Direct Fast Black G,Pergasol Black G

Molecular Formula:C34H27N13Na2O7S2

Molecular Weight: 839.77

CAS Registry Number:6428-31-5

Manufacturing Methods : 4-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.

Properties and Applications: green 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

List of Suppliers:

Direct Black L-3BQ,Direct Fast Black,Direct Fast Black FF,Direct Fast Black G

JinZhou Dyestuffs Plant Hebei

Tianjin Yadong Group

ABCOL Black ( Abbey Color Inc. )

ACDI Black G 200%(Aakash Chemicals & Dyestuffs Inc)

Arid Black G 200%( Aashiana Dyestuffs Inc )

Atul Direct Black ( Atul Limited )

Baycolor Black B ( Bayer Group )

Benzo Fast Black G ( Bayer Group )

Black G(Monarch Dyestuffs Industries)

Black G ( Modern Dyestuffs & Pigments Co Ltd )

Black G (Hangzhou Dikai Chemical Co Ltd)

Columbia Fast Black GRV (CBW Chemie GmbH Bitterfeld-Wolfen)

Condirec Black AN (Concord Commerce Company)

Cutamin Fast Black CR (CBW Chemie GmbH Bitterfeld-Wolfen)

Dinamine Black VL (Dintex Dyechem Ltd)

Direct Black G(Chemische Fabriek Triade BV)

Direct Black G( Chemi-Dyestuffs Industries (Pvt) Ltd )

Direct Black G 200% ( Global Colors Inc. )

Direct Fast Black G ( Frado )

Direct Fast Black G (Sinochem Tianjin Imp Exp Corp)

Direct Fast Black G (Sinochem Hebei Imp & Exp Corp)

Direct Fast Black G(Sinochem Ningbo Imp & Exp Corp)

Direct Fast Black G (Nanjing Chemicals Import and Export Corp)

Direct Fast Black G(Sinochem Jiangsu I/E Corp.)

Direct Fast Black G (Brighten Colorchem BV)

Direct Fast Black G (Fenchem Enterprises Ltd)

Direct Fast Black G( Day-Glo Color Corp. )

Direct Fast Black G( Shandong Leling Huahong Dyes & Chemicals Co Ltd )

Direct Fast Black G (Shandong Qing Shun Chemical Co., Ltd.)

Doramin Black G 375%( D&G Dyes Inc. )

DycosdirectBlackG (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Dyrect Black BVC ( Albion Colours Ltd)

Everdirect Black G(Eveiiight Chemical Industrial Corp)

Fast Black G( Sinochem Liaoning Import & Export Corporation )

Hariect Black VG ( Bhavi International Ltd )

Hispamin Fast Black CG ( S A Robama )

Kayarus Black G(Nippon Kayak u Co Ltd)

Kemanarect Fast Black G( Karsandas Mavji )

Leadirect Black G 200%( Leadertech Colors Inc. )

Lerui Direct Black G ( Rosi Chemical Co Ltd )

Levacell Black PN( Bayer Group )

Orco Direct Black VN( Organic Dyestuffs Corp )

Orient Water Black 100-L ( Kaseihin Kogyo Kyokai )

Orient Water Black 100-L ( Orient Chemical Industries )

Pergasol Black G ( Ciba Specialty Chemicals Inc )

Permalite Black GP Conc ( Standard Dyes )

Rayon Black JS ( S A des Ets. Steiner )

Sandal Direct Black G ( Sandal Dyestuff Industries (Pvt) Ltd )

Satum Black G(SBU Pigments and Dyes)

Simrect Black 24868(Simpsons (UK) Ltd)

Sirius Black G( DyStar GmbH & Co Deutschland KG )

Solar Black G ( Clariant GmbH )

Solophenyl Black GN ( Ciba Specialty Chemicals Inc )

Solphenyl Black GN 250% (Classic Dyestuffs Inc)

Sumilight Black G ( Sumitomo Chemical Co. Ltd )

Tertrodirect Viscose Black GTN (Yorkshire Group pic)

Vicorect Black FB(Victory Colour Chem Industries)

Vicorect Black VG(Victory Colour Chem Industries)

Water Balck 100L( Orient Corporation of America )


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