Acid Black 51
Name:C.I.Acid Black 51,C.I.16711
Molecular Structure: Single azo,Metal Complexes
C.I.Acid Black 51,C.I.16711,CAS 6408-19-1,416.77,C16H10ClN2NaO6S
Molecular Formula:C16H10ClN2NaO6S
Molecular Weight: 416.77
CAS Registry Number:6408-19-1
Manufacturing Methods : 2-Amino-4-chlorophenol diazo, and 4,6-Dihydroxynaphthalene-2-sulfonic acid coupling, and then will product with aqueous acid chromium common heating, in 115 ℃ keep 4.5 hours, make its formed chromium complex.
Properties and Applications: black. Used for wool, polyamide fiber dyeing and printing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5 | 4 | 5 | 3 | 1-2 | 5 | 5 | |
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