hexasodium 4-amino-3,6-bis[[4-[[4-chloro-6-[(3-sulphonatophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulphonatophenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate

Uses

Reactive Green 19 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.

Preparation

2,4,6-Trichloro-1,3,5-triazine and 3-Aminobenzenesulfonic acidand 2,5-Diaminobenzenesulfonic acid condensation, Its product (2 moles) and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid in acidic and alkaline medium coupling.

Properties and Applications

green. Blue-green powder, in 20 ℃ when solubility of 120 g/L; 50 ℃ when solubility of 150 g/L. After dyeing tonal for green, dye bath of copper ions in a red light and dark (grade 1), encounter iron ion colored light micro to yellow (category 4). The dye sex is high, the reaction of the medium, and easy to wash the gender is good. For A class of neutral white, white alkaline for grade C. Apply to cotton, such as glue than small bath dyeing, with high economic value. Also suitable for polyester/cotton, polyester/stick blended fabric dyeing.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	4	2-3(yellow)	4-5	4-5(yellow)(Alkali)	4	4-5(95℃)	4-5

References

[1] Machado F M, et al. Adsorption of Reactive Blue 4 dye from water solutions by carbon nanotubes: experiment and theory[J]. Physical Chemistry Chemical Physics, 2012, 14(31): 11139-11153.