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
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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