Acid Yellow 20
Name:C.I.Acid Yellow 20,C.I.14225
Molecular Structure: Single azo class
Molecular Formula:C17H3N2NaO4S
Molecular Weight: 364.35
CAS Registry Number:8005-93-4
Manufacturing Methods : 6-Aminonaphthalene-1-sulfonic acid and 7-Aminonaphthalene-1-sulfonic acid diazotization, and p-Cresol (0.9 Moore) and o-Cresol (0.1 Moore) coupled.
Properties and Applications: dark red light yellow. Used for wool, silk, vinegar fiber dyeing.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 5 | 1 | 2 | 2 | 2-3 |
List of Suppliers:
Palatine Light Yellow RX ( Badische Anilin-und Soda Fabrik )
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