Other Name: Methyl Violet 2B
Molecular Formula: C₂₉H₂₈N₃NaO₇S₂
Molecular Weight: 617.67
Manufacturing Methods : Commonly known as Methyl Violet. Pararosaniline is greater methylation (mainly containing N – four, five, six methyl derivatives) hydrochloride salt mixture, the mixture is N,N-dimethylaniline and the oxidation of copper chloride, or the action of air in N,N-dimethylaniline, phenol, sodium chloride and a mixture of copper sulfate in the system.
Properties and Applications: blue purple. Blue light purple powder. Soluble in cold water and hot water, soluble in ethanol for purple. The strong sulfuric acid dyes to orange, diluted turn green, have precipitation. The dye water solution is purple, with sodium hydroxide change palm red, precipitation. Used for cotton, wool, silk dyeing, can be in cotton, wool, silk fabric printing. This product is mainly used for the textile shading, also can be used in the manufacture of organic pigment and solvent dye, also can be used for paper, leather, biological shading, also used in the film, and varnish coloring and indicator.