ACID ORANGE 74

Chemical properties

red-brown to brown powder

The Uses of ACID ORANGE 74

Acid Orange 74 is an azo dye used in the textile industry, and a ground water pollutant.

What are the applications of Application

Acid orange 74 is a useful acid dye with a λmax 455nm

Preparation

3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid diazo, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one matches, will result in aqueous solution with formic acid chromium heating, in 130 ℃ keep 3 hours, make it into a chrome complex.

Properties and Applications

orange. Dark brown powder. Soluble in water for orange, soluble in ethanol, slightly soluble in soluble fiber element. The strong sulfuric acid to dark yellow, diluted into orange; In 10% of sodium hydroxide solution for orange. Used for wool, polyamide fiber and silk dyeing and printing directly, also used in leather and electrochemical aluminum color. Especially for the influential product and the wool carpet dyeing.