Acid Black 29
Name:C.I.Acid Black 29,C.I.30336
Molecular Structure: trisazo class
Molecular Formula:
Molecular Weight:
CAS Registry Number:12217-14-0
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid in acid conditions coupled; 2-Aminobenzenesulfonic acid diazo, in alkaline conditions to the above the products with coupling, and then in alkaline conditions and N-(3-hydroxyphenyl)-2-methyl-aniline coupling.
Properties and Applications: black. Black powder, unfavorable discharge. Used for wool, silk dyeing and printing, also can be used for leather color.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 3-4 | 4-5 | 4-5 | 4-5 | 3 | 3-4 | |
List of Suppliers:
Acid Blac BM,Acid Blac MB,Acid Blac NT
Jinhua Hanllycome Chemical Co., Ltd.
Acid Black NT(Fenchem Enterprises Ltd)