Acid Orange 12
Name:C.I.Acid Orange 12,C.I.15970
Molecular Structure: Single azo class
C.I.Acid Orange 12,C.I.15970,CAS 1934-20-9,350.33,C16H11N2NaO4S
Molecular Formula:C16H11N2NaO4S
Molecular Weight: 350.33
CAS Registry Number:1934-20-9
Manufacturing Methods : 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.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4 | 1 | 2 | 2-3 | 1 | 2 | 2-3 | 1 |
| AATCC | 4 | 2-3 | 2-3 | 2 | 1 | 4 | ||
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[…] carbonate (no change solution; Add thick sodium hydroxide solution for palm light orange. And C.I. Acid orange 12 the same chemical […]