| Identification | Back Directory | [Name]
Chromate(1-), bis[4-[[2-(hydroxy-κO)-5-nitrophenyl]azo-κN1]-2-(phenylazo)-1,3-benzenediolato(2-)-κO3]-, hydrogen | [CAS]
6408-11-3 | [Synonyms]
Acid Brown 233
C.I.Acid Brown 233:C.I.20018
Chromate(1-), bis[4-[[2-(hydroxy-κO)-5-nitrophenyl]azo-κN1]-2-(phenylazo)-1,3-benzenediolato(2-)-κO3]-, hydrogen | [EINECS(EC#)]
613-439-3 | [Molecular Formula]
C36H23CrN10O10 | [MOL File]
6408-11-3.mol | [Molecular Weight]
807.64 |
| Hazard Information | Back Directory | [Preparation]
2-Amino-4-nitrophenol diazo, Coupled with resorcinol, its product again with diazo of aniline coupling, and then translate into 1:2 chromium complex. | [Properties and Applications]
red light brown. Soluble in water for brown, soluble in ethanol for red light brown. The strong sulfuric acid for orange brown, diluted for orange brown still. Add in aqueous solution hydrochloric acid have red brown precipitation; Add sodium hydroxide in red.
|
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
6
|
4
|
4
|
5
|
4-5
|
4
|
|
|
|
|
|