| Identification | Back Directory | [Name]
Solvent Red 31 | [CAS]
6226-90-0 | [Synonyms]
C.I.27306
Solvent Red 31
C.I.Solvent Red 31
C.I.Solvent Red 31:C.I.27306
Solvent Red 31 ISO 9001：2015 REACH
7-hydroxy-8-[[4-(phenylazo)phenyl]azo]naphthalene-1,3,6-trisulphonic acid, compound with bis(cyclohexyl)amine
(8Z)-7-Oxo-8-({4-[(E)-phenyldiazenyl]phenyl}hydrazono)-7,8-dihydr o-1,3,6-naphthalenetrisulfonic acid - N-cyclohexylcyclohexanamine (1:1) | [EINECS(EC#)]
228-322-9 | [Molecular Formula]
C34H39N5O10S3 | [MOL File]
6226-90-0.mol | [Molecular Weight]
773.896 |
| Hazard Information | Back Directory | [Preparation]
4-(Phenyldiazenyl)benzenamine diazotization and 7-Hydroxynaphthalene-1,3,6-trisulfonic acid coupling, and then translate into dicyclohexyl amine salt. | [Properties and Applications]
red. Dark red powder. Insoluble in water, slightly soluble in ethanol for magenta. In concentrated sulfuric acid to purple, dilution after pink. Dye aqueous solution to join concentrated hydrochloric acid to red; Add thick sodium hydroxide solution for brown. Used for plastic, grease, printing ink, paint color.
|
Standard
|
Light Fastness
|
Heat-resistant(℃)
|
water
|
Sodium Carbonate(5%)
|
Hydrochloric acid(5%)
|
|
Melting point
|
Stable
|
|
ISO
|
Good
|
|
120(1hr)
|
Well
|
Poor
|
Poor
|
|
|
|