Product Name: Direct Black 17
C.I. No.: 27700
CAS No.: 2945-96-2
Molecular Formula: C24H21N6NaO5S
Molecular Weight: 528.52
Shade: green light gray to green and black. Black powder.
Relative name:
C.I. Direct Black 17 (7CI);C.I. Direct Black 17,monosodium salt (8CI);Zambesi Black D (6CI);Azogen BlackD;Benzamin Black DS;Benzo Grey LBGV;C.I. 27700;Carbide Black DU;Chloramine Black SD;Chrome Leather Black D;Diaphtogene Black D;Diazine Black DR;Diazo Black D;DiazoFast Black MD;Diazol Black SD;Diazophenyl Black D;Direct Fast Black D;Direct Gray D;Direct Grey D;DurazolGray B;Giuba Black D;IndigeneBlack D;Japanol Fast Black D;Kayaku Direct FastBlack D;Phenazo Black D;Pyrazol Black D;Telon FastBlack PE;Vondacel Black D;ZambesiBlack DA-CF;
Direct Black 17 Physical Properties and light fastness, solubility.
| Direct Black 17 | |
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 3 |
| Washing Fatness | 3 |
| Rubbing fastness(dry) | 4 |
| Rubbing fastness(wet) | 3 |
?Soluble in water for violet black, 80 ℃ in the solubility of 20 g/L, soluble in ethanol gray light purple. The strong sulfuric acid is a deep blue in green, orange brown after diluted precipitation. The dye solution to join strong hydrochloric acid for dark brown, have precipitation;? Adding concentrated sodium hydroxide solution in gray light purple precipitate. Cellulose fiber of dyeing, the dye absorption rate as well, in 40 ~ 80 ℃ maximum of affinity, discharge the gender is good.
Used for cotton or viscose dyeing, is not used for printing. Can also be used for silk, PVA, polyamide fiber and its blended fabric dyeing.
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.
