Product Name: Direct Black 1
C.I. No.: 31595
CAS No.: 8003-68-7
Molecular Formula: C22H14N6Na2O9S2
Molecular Weight: 784.73
Shade: Black.
Direct Black 1 Physical Properties and light fastness, solubility.
| Direct Black 1 | |
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 3 |
| Washing Fatness | 1-2 |
| Rubbing fastness(dry) | 4 |
| Rubbing fastness(wet) | 3 |
Manufacturing Methods : 4-Nitrobenzenamine diazo, and 2-Amino-4-methylanisole matches, will the nitro reduction for amino, product double nitriding, first and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, and then in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.
Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.
