Direct Violet 9 Chemical Properties

Density 

1.709[at 20℃]

vapor pressure 

0Pa at 25℃

Water Solubility 

6.23g/L at 20℃

LogP

-2.165 at 20℃

EPA Substance Registry System

C.I. Direct Violet 9, disodium salt (6227-14-1)

Direct Violet 9 Usage And Synthesis

Chemical Properties

Soluble in water with reddish purple color, soluble in ethylene glycol ethyl ether, slightly soluble in ethanol, insoluble in other organic solvents. Its aqueous solution produces a purple precipitate when added to concentrated hydrochloric acid; it produces a purple precipitate when added to concentrated sodium hydroxide solution. The dye is bluish green in concentrated sulfuric acid, and produces purple precipitate after dilution; it is reddish brown solution in concentrated nitric acid.

Uses

C.I. Direct Violet 9 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.

Preparation

4-Aminobenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupling, its product to diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Flammability and Explosibility

Non flammable

Properties and Applications

blue purple. Soluble in water for red light purple, soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid for blue-ray green, purple precipitation after diluted; In nitric acid solution for the red light in brown. The dye solution to the strong hydrochloric acid has the purple precipitation; Add thick sodium hydroxide solution has the purple sediment: cotton, viscose, silk dyeing and printing, also can be used for paper color, can also be used in leather color.

References

[1] Sultana M, et al. A review on experimental chemically modified activated carbon to enhance dye and heavy metals adsorption[J]. Cleaner engineering and technology, 2022, 6: 100382.

Direct Violet 9(6227-14-1)Related Product Information

• trisodium 3-[[4-[[6-(anilino)-1-hydroxy-3-sulphonato-2-naphthyl]azo]-5-methoxy-o-tolyl]azo]naphthalene-1,5-disulphonate
• Direct Red 13
• DIRECT VIOLET 51
• Direct Red 23
• AMYLOSE
• Direct Black 166
• DIRECT BLACK 22
• Direct Orange 39
• Direct Red 243
• Direct Green 26
• DIRECT RED 80
• DIRECT PURE YELLOW 5G
• Direct Yellow 12
• Direct Black 19
• Direct Black 168
• Direct Yellow 120
• Direct Blue 199
• Direct Brown 95