Disperse Red 5 Chemical Properties

Melting point:

192°C

Boiling point:

610.2±55.0 °C(Predicted)

Density 

1.4014 (rough estimate)

refractive index 

1.6800 (estimate)

pka

14.26±0.10(Predicted)

Water Solubility 

144ug/L(25 ºC)

EPA Substance Registry System

Ethanol, 2,2'-[[4-[(2-chloro-4-nitrophenyl)azo]-3-methylphenyl]imino]bis- (3769-57-1)

Disperse Red 5 Usage And Synthesis

Preparation

2-Chloro-4-nitrobenzenamine diazo, and N,N-bis(2-hydroxyethyl)-3-methylbenzenamine?coupling between armour

Properties and Applications

Colourful blu-ray red. Purplish red powder. Soluble in ethanol and soluble fiber element, for blu-ray red, soluble in acetone, slightly soluble in benzene and carbon tetrachloride. The strong sulfuric acid as dark blue light in red, the color after diluted colourful red precipitate; In 10% of sulfuric acid to red; In 10% of sodium hydroxide solution for brown. Dyeing encounter copper, iron ion to the colored light no effect. The dye appropriate pH value for 4 ~ 10, after dyeing and printing can be a resistance, but not resistant to restore. The dyes as red sauce, mainly for the spell navy and black. Levelness general, suitable for high temperature high pressure and dyeing of carrier, hot melt temperature of 190 ~ 200 ℃. In three vinegar on fiber dyed shallow-dark can, in 2 vinegar only on fiber dyed light color, not suitable for dyeing nylon, polyester fabric can be in the direct printing, and can make the impression of the discharge printing.

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