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Acid Black 24

Name:C.I.Acid Black 24,C.I.26370

Molecular Structure: Double azo class

C.I.Acid Black 24,C.I.26370,CAS 3071-73-6,731.71,C36H23N5Na2O6S2, Weak Acid Black BR,Acid Black 2B,Acid Black 2BL,Acid Black 3B,Acid Black 3BR,Acid Black B,Acid Black P-7BR

C.I.Acid Black 24,C.I.26370,CAS 3071-73-6,731.71,C36H23N5Na2O6S2,
Weak Acid Black BR,Acid Black 2B,Acid Black 2BL,Acid Black 3B,Acid Black 3BR,Acid Black B,Acid Black P-7BR

Molecular Formula:C36H23N5Na2O6S2

Molecular Weight: 731.71

CAS Registry Number:3071-73-6

Manufacturing Methods :5-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-(Phenylamino)naphthalen-1-ol   coupling.

Properties and Applications: blue and black. Blue-black powder. Soluble in water is red light blue or black, soluble in ethanol for navy, slightly soluble in acetone, insoluble in other organic solvents. In a strong sulfuric acid powder blue, it will be a dark green light blue after diluted; In a red light brown nitric acid to yellow. Its water solution and strong hydrochloric acid is green light blue; Add sodium hydroxide fluid shows purplish red color. Dyeing copper ions in a dark green color, also meet iron ion is dark. Used for the Wool Fabric dyeing, especially suitable for kemp products and Wool Blended Fabric dyeing, also can be used for polyamide, silk and leather dyeing. The Barium salt can be used as organic pigments.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 6 3-4 2-3 4-5 4 2 4-5 3-4
AATCC 5 3-4 3-4 4 2-3 2-3 3 3

List of Suppliers:

Weak Acid Black BR,Acid Black 2B,Acid Black 2BL,Acid Black 3B,Acid Black 3BR,Acid Black B,Acid Black P-7BR

Hangzhou Xiasha Hengsheng (Sunshine) Chemicals Co.,Ltd.

Hangzhou Xiasha Hengsheng (Sunshine) Chemicals Co.,Ltd.

Hangzhou Xiasha Hengsheng (Sunshine) Chemicals Co.,Ltd.

Jinhua Hanllycome Chemical Co., Ltd.

Shuanghong Chemical Co., Ltd.

Shangyu Guangming Chemical Co.,Ltd.

ABCOL Milling Black 2 BNS( Abbey Color Inc. )

Acid Black 2B( Global Colors Inc. )

Acid Black B ( Joint Stock Company ‘Coioros’ )

Acid Black BR (Sinochem Ningbo Imp & Exp Corp)

Acid Black BR (Nanjing Chemicals Import and Export Corp)

Acid BlackBR (Brighten Colorchem BV)

Acid Black BR(Fenchem Enterprises Ltd)

Acid Blue Black BR (Sinochem Jiangsu Wuxi Imp & Exp Corp)

Acid Blue-Black BR(Sinochem Liaoning Import & Export Corporation)

Acid Fast Black 2A ( Sintofarm SA )

Acid Fast Black N-2A (Colorom SA)

Acid Milling Black ES ( KCA Ltd )

Acid Milling black BX ( Metrochem Industries Ltd )

Akacid Fast Black 2B 150% (Aakash Chemicals & Dyestuffs Inc)

Aminyl Black F-VGL( Sumitomo Chemical Co. Ltd )

Atul Wool Fast Black 3B Exp ( Atul Limited )

Best Acid Milling Black 2B ( Oriental Giant Dyes and Chemical Ind Corp )

Black BR( Hangzhou Dikai Chemical Co Ltd )

Colocid Fast Black 3B ( Color Synth Industries Ltd )

Conacid Black BD (Concord Commerce Company)

Dinacid Fast Black 3B (Dintex Dyechem Ltd)

Doracid Black 2B 150%( D&G Dyes Inc. )

Dycosweak Acid Black BR (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Folan Fast Black [B ]( Ciech SA )

Follone BlackB ( European Colour (Pigments) Ltd )

Hispacid Black 2B ( S A Robama )

Hispacid Fast Black 2B ( S A Robama )

Kenanthrol Black 2B ( Albion Colours Ltd)

Lerui Acid Black BR ( Rosi Chemical Co Ltd )

Milling Black SB ( JK Promotions )

Multacid BlackBB ( Multicrom SA )

Nylosan Black 2BL( Clariant GmbH )

Oreo Milling Black 2BN( Organic Dyestuffs Corp )

Rico Milling Black[B](Classic Dyestuffs Inc)

Sinolon Black BR( Shangyu Big Sunshine Chemical Industry Co Ltd )

Sulfocyanine Black BB ( Multicrom SA )

Sulfon Black S ( S A des Ets. Steiner )

Sulphoncyanine Black 2B ( Frado )

Suminol Millmg Black VLG( Sumitomo Chemical Co. Ltd )

Supranol Fast Black BB( Bayer Group )

Tertracid Fast Black 2B (Yorkshire Group pic)

Tertracid Fast Black CB (Yorkshire Group pic)

Tracid Black BR (Sinochem Hebei Imp & Exp Corp)

Triacid Fast Black BR (Chemische Fabriek Triade BV)

Vicoacid Milling Black [BS] (Victory Colour Chem Industries)

Vopsider Black A2AL( Sintofarm SA )

Weak Acid Black BR [D] ( Dynamic Industries Ltd )

Youhaotracid Blue Black BR (Sinochem Tianjin Imp Exp Corp)

Youhaotracid Blue-Black 2BR 4226 (Sinochem Tianjin Imp Exp Corp)


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