Acid Blue 40 |
2. Molecular weight:473.43 |
3. Structure formula: |
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4. CAS NO.:6424-85-7 |
5. Appearance: Blue powder. |
6. Specification: Strength 160% powder & CDP. |
7. Usage: Mainly used for wool, silk and nylon dyeing and printing. |
8. Packing, storage and transportation: Packed with 25KG cartons, allows to be tansported by the general means. |
Acid Blue 40
Properties and Applications：
green light blue. Dark blue powder, soluble in water, solubility in water (80 ℃) 100 g/L, water solution is blue. Soluble in acetone and ethanol, slightly soluble in nitrobenzene, insoluble in benzene and dimethyl benzene, encounter the dark brown color of sulfuric acid, a product after diluted red; In the hydrochloric acid and sodium hydroxide solution discoloration. Mainly used for wool, polyamide fiber and silk dyeing and printing, also can be used for leather color.
Acid Blue 40
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 6 | 2 | 2 | 3 | 1-2 | 1-2 | 3 | 1-2 |
| AATCC | 5 | 1-2 | 1-2 | 2 | 1 | 1 | 2-3 | 2-3 |
Acid Blue 40