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Acid Orange 27

Name:C.I.Acid Orange 27,C.I.17750

Molecular Structure: Single azo class

C.I.Acid Orange 27,C.I.17750,CAS 3443-89-8,509.42,C18H13N3Na2O8S2

C.I.Acid Orange 27,C.I.17750,CAS 3443-89-8,509.42,C18H13N3Na2O8S2

Molecular Formula:C18H13N3Na2O8S2

Molecular Weight: 509.42

CAS Registry Number:3443-89-8

Manufacturing Methods : 2-Aminobenzenesulfonic acid diazo, and  7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications: bright orange. Soluble in water and ethanol for gold orange. The strong sulfuric acid for gold in orange, with golden yellow diluted. In water solution to join strong hydrochloric acid for gold orange; Add thick sodium hydroxide solution for red light orange brown. Used for wool, silk fiber dyeing, etc.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5-6 1-2 3 2-3 1-2 3 3 3

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