Name:C.I.Acid Violet 49,C.I.42640
Molecular Structure: triarylmethane class
C.I.Acid Violet 49,C.I.42640,CAS 1694-09-3,733.87,C39H40N3NaO6S2,Acid Violet 5B,Acid Pale Purple 5B
Molecular Formula:C39H40N3NaO6S2
Molecular Weight: 733.87
CAS Registry Number:1694-09-3
Manufacturing Methods :
(a) 4-(Dimethylamino)benzaldehyde (1 Moore) and 3-(Ethyl(phenyl)amino)methyl)benzenesulfonic acid (2 Moore), condensation product oxidation, and translated into sodium salt; (b) 3-(Ethyl(phenyl)amino)methyl)benzenesulfonic acid (2 Moore) and Formaldehyde (1 Moore), then in N,N-dimethylaniline presence oxidation.
Properties and Applications: bright blue purple. Violet powder. It is easy to dissolve in the cold water and hot water (purple), soluble in ethanol (purple). Strong sulfuric acid in orange, diluted mustard color. Add sodium hydroxide solution for the dark precipitation. Mainly used for wool, silk, polyamide fiber dyeing, spelling color performance is good, refined as food after dye.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 1-2 | 3 | 3 | 3-4 | 1 | 3-4 | ||
AATCC | 1-2 | 3-4 | 3-4 | 2 | 1 | 4 | ||
