ACID ORANGE 33
C.I.Acid Orange 33,C.I.24780,CAS 6507-77-3,730.72,C34H28N4Na2O8S2,Weak Acid Orange 2R,Weak Acid Orange GS,Weak Acid Brilliant Orange 2R,Weak Acid Brilliant Orange GS,Acid Orange GS,Acid Brilliant Orange P-2R
Molecular Formula:C34H28N4Na2O8S2
Molecular Weight: 730.72
CAS Registry Number:6507-77-3
Manufacturing Methods : 1,1-Bis(4-aminophenyl)cyclohexane double nitriding, respectively with the 7-Hydroxynaphthalene-1,3-disulfonic acid and phenol coupling.
Properties and Applications: red light orange. Soluble in water for gold orange, in ethanol has a solubility, orange for gold. The strong sulfuric acid in orange, diluted the same color. Its water solution with hydrochloric acid into orange; Add thick sodium hydroxide solution for yellow brown. Mainly used for wool, silk and polyamide fiber dyeing and printing, also can be used for paper, hemp, sisal, leather and straw dyeing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4-5 | 3-4 | 3-4 | 3 | 3 | 4 | ||
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