Acid Yellow 87
Name:C.I.Acid Yellow 87,C.I.22905
Molecular Structure: Double azo class
C.I.Acid Yellow 87,C.I.22905,CAS 6375-54-8,672.64,C30H22N6Na2O6S2
Molecular Formula:C30H22N6Na2O6S2
Molecular Weight: 672.64
CAS Registry Number:6375-54-8
Manufacturing Methods : 2,2′-Disulfo-4,4,diaminobibenzene double nitriding, and 2-Methyl-2H-indazole (2 Moore) coupled.
Properties and Applications: yellow. Soluble in water, slightly soluble in ethanol lemon yellow. The strong sulfuric acid for lemon yellow, dilute lemon yellow into golden by. Its water solution to join strong hydrochloric acid for gold orange; Add sodium hydroxide for gold orange.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 4-5 | 3 | 3-4 | 3 | 4 | ||
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