CROCEIN ORANGE G

Chemical properties

orange-red powder

The Uses of CROCEIN ORANGE G

A labeled form of Crocein Orange G (C794955), also known as Acid Orange 12, which is a water-soluble synthetic dye.

What are the applications of Application

Crocein Orange G is a phenylsulfonephthalein dye

Preparation

aniline diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

bright orange. Soluble in water for gold orange, slightly soluble in ethanol for gold orange, slightly soluble in acetone and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for gold in orange, diluted colour and lustre is unchanged; In nitric acid by brown in a red. Its water solution to join strong hydrochloric acid for gold orange; Add 10% of sodium carbonate solution color unchanged; Add thick sodium hydroxide solution for palm orange. Used for wool, silk, cotton, vinegar fiber etc of fiber dyeing and printing directly. Also used for paper, leather and biological dyeing, also used as indicator.