Acid Brown 2
Name:C.I.Acid Brown 2,C.I.17605
Molecular Structure: Single azo class
C.I.Acid Brown 2,C.I.17605,CAS 3626-41-3,516.46,C23H17N4NaO7S,Weak Acid Brown RL,Acid Brown K,Acid Brown P-RB,Acid Brown R
Molecular Formula:C23H17N4NaO7S
Molecular Weight: 516.46
CAS Registry Number:3626-41-3
Manufacturing Methods : 2-Methoxy-5-nitrobenzenamine diazo, and 4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid in alkaline conditions coupled.
Properties and Applications: brown. Black brown powder. Slightly soluble in water (for blue-ray red), soluble in ethanol (a red light brown), insoluble in other organic solvents. Meet strong sulfuric acid as red light purple, it will be diluted for olive brown; Meet strong sulfuric acid as brown, and soon become yellow light brown. Its water solution with hydrochloric acid produce dark brown precipitation; Add sodium hydroxide produce deep red precipitate. Used for wool fabric, polyamide fiber and silk dyeing and printing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5-6 | 3 | 3 | 4 | 1 | 1 | 4-5 | 4-5 |
| AATCC | 5-6 | 3 | 3 | 4-5 | 4 | 4 | ||
List of Suppliers:
Weak Acid Brown RL,Acid Brown K,Acid Brown P-RB,Acid Brown R
Hangzhou Xiasha Hengsheng (Sunshine) Chemicals Co.,Ltd.
Jinhua Hanllycome Chemical Co., Ltd.
Acid Brown R( Joint Stock Company ‘Coioros’ )
Acid Fast Brown R(Colorom SA)
Clasic Acid Brown 2 300% (Classic Dyestuffs Inc)
Lerui Acid Brown RL( Rosi Chemical Co Ltd )
Weak Acid Brown RL (Fenchem Enterprises Ltd)