Acid Black 2 Acid Nigrosine 1. Molecular formula: |
2. Molecular weight: |
3. Structure formula: |
4. CAS NO.:8005-03-6 |
5. Appearance: Black uniform powder. |
6. Specification: Strength 100% powder & CDP. |
7. Usage: Mainly used for wool, silk, cotton and leather dyeing and printing. |
8. Packing, storage and transportation: Packed with 25KG cartons, allows to be tansported by the general means. |
Acid Black 2 Acid Nigrosine
Properties and Applications：black. Black with flash in the granular, a violet is soluble in water, soluble in ethanol is blue. The strong sulfuric Acid Dyes is blue, it will be diluted and the generated purple precipitation. Blue light purple in aqueous solution, and sodium hydroxide show dark purple precipitation. Mainly used for leather dyeing. Also applies to paper, wood, soap, electrical-controlled aluminum, wool and silk dyeing of content, but also can be used in the manufacture of ink.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater |
| Fading | Stain | Fading | Stain | Fading | Stain |
| ISO | 5 | 4 | | | | | 4 |
Acid Black 2 Acid Nigrosine
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