Chemical Properties
dark orange to rust brown crystalline powder
Uses
N,?N-?Dimethyl-?4,?4''-?azodianiline is a disperse dye. Dyes and metabolites.
Preparation
4-Nitrobenzenamine diazo, and N,N-dimethylaniline?coupling, and then will the nitro reductive into amino.
Safety Profile
Poison by
intraperitoneal route. Mutation data
reported. When heated to decomposition it
emits toxic fumes of NOx
Purification Methods
Crystallise the azo-dye from aqueous EtOH. [Beilstein 14 IV 1004.]
Properties and Applications
black, red and black. Red crystallization, melting point of 186 ~ 187 ℃. Soluble in ethanol, acetone, soluble fiber element, pottery, solvent and carbon tetrachloride,. The strong sulfuric acid is palm in light yellow, diluted for orange red; In the light of nitric acid for palm red solution; In strong hydrochloric acid solution for red; In the thick of sodium hydroxide solution don’t change color.
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Standard(Polyamide)
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Ironing Fastness
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Light Fastness
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Persperation Fastness
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Washing Fastness
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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2
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3
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4
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3-4
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4
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4
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