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Product Name:Acid Black 24 160%
Molecular Structure: Double azo class 
Molecular Formula:C36H23N5Na2O6S2
Molecular Weight: 731.71
CAS Registry Number:3071-73-6
Manufacturing Methods :5-Aminonaphthalene-1-sulfonic acid diazo, andNaphthalen-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.
Counter Product:Nylosan Black 2BL,Rico Milling Black[B],Supranol Fast Black BB
| 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 |
