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Acid Orange 20

Name:C.I.Acid Orange 20,C.I.14600

Molecular Structure: Single azo class

C.I.Acid Orange 20,C.I.14600,CAS 523-44-4,350.33,C16H11N2NaO4S

C.I.Acid Orange 20,C.I.14600,CAS 523-44-4,350.33,C16H11N2NaO4S

Molecular Formula:C16H11N2NaO4S

Molecular Weight: 350.33

CAS Registry Number:523-44-4

Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, and Naphthalen-1-ol coupling.

Properties and Applications:  orange. Soluble in water for palm light orange, slightly soluble in ethanol, acetone, insoluble in most organic solvents. The strong sulfuric acid for purple, diluted into palm orange, red with purple precipitation. Its water solution to join strong hydrochloric acid for orange brown; Add sodium hydroxide in red. Used for wool, silk fiber dyeing, etc. Also used in leather dyeing and indicator.

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