dye|World dye variety

Name:C.I.Direct Black 51,C.I.27720

Molecular Structure: Double azo class

C.I.Direct Black 51,C.I.27720,CAS 34977-63-4,601.5,C27H17N5Na2O7S,Sirius Black L-V,Direct Fast Black,Direct Light Black L,Direct Fast Black N-L

Molecular Formula:C₂₇H₁₇N₅Na₂O₇S

Molecular Weight: 601.5

CAS Registry Number:34977-63-4

Manufacturing Methods : 3-Amino-2-hydroxybenzoic acid coupling, again diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid  coupling.

Properties and Applications: blue gray. To black powder. Soluble in water, slightly soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid dyes for green, diluted into red sauce, precipitation. The dye solution for violet black, join after strong hydrochloric acid by purplish red color into red sauce, precipitation; Add thick hydrogen uranium oxide solution to dark purple, have precipitation. Water-soluble general, sensitive to that fights. Dyeing copper and iron ion in the blue light. Used for cotton, viscose and their blended fabric dyeing and silk, cotton or viscose fabric can be in directly on printing, also used in leather and fur and paper color. And disperse dyestuffs high temperature on polyester with bath/cotton blended fabric dyeing.

List of Suppliers:

ACDI Fast Black L 167%(Aakash Chemicals & Dyestuffs Inc)

Aizen Direct Fast Black ( Hodogaya Chemical Co Ltd )

Atlantic Direct Fast Black LS (Classic Dyestuffs Inc)

Black L ( ellenic Dyeworks SA )

Classic Direct Black 51 Conc(Classic Dyestuffs Inc)

Dinamine Fast Black L (Dintex Dyechem Ltd)

Direct Black LS(Classic Dyestuffs Inc)

Direct Fast Black conc. ( Sumitomo Chemical Co. Ltd )

Direct Fast Black L( Sintofarm SA )

Direct Fast Black L Conc (Classic Dyestuffs Inc)

Direct Fast Black LS ( Global Colors Inc. )

Direct Fast Black N-L (Colorom SA)

Direct Light Black L( Multicrom SA )

Dyrect Fast Grey RGD ( Albion Colours Ltd)

Formo Supra Black FCN ( Formokem (India) Corp. )

Helion Grey L( Ciech SA )

Hispaluz Grey BG ( S A Robama )

Multiluz Black L ( Multicrom SA )

Orcolite Fast Black X Hi Conc (Classic Dyestuffs Inc)

Orcolitefast Black L Ex. Conc. ( Organic Dyestuffs Corp )

Permalite Black L 150% ( Standard Dyes )

Permalite Black LS( Standard Dyes )

Phenamine Black LA (Classic Dyestuffs Inc)

Romexal Black D L ( Sintofarm SA )

Satum Black LN (SBU Pigments and Dyes)

Sirius Black L 167%(Classic Dyestuffs Inc)

Sirius Black L-V ( DyStar GmbH & Co Deutschland KG )

Sirius Supra Black L-V ( Bayer Group )

Solius Black L ( Frado )

Suprazo Black L( Mitsui Toatsu Chemicals Ltd )

Triasol Grey L( Chromatourgia Tripoleos SA )

Vopsider Black DL( Sintofarm SA )