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Product Name: Direct Yellow 50
C.I. No.: 29025
CAS No.: 3214-47-9
Molecular Formula: C35H24N6Na4O13S4
Molecular Weight: 956.82
Relative Name:
Direct Yellow RS,Direct Fast Yellow FTF,Direct Fast Yellow RS
Shade: red light yellow
Direct Yellow 50 Physical Properties and light fastness, solubility.
| Direct Yellow 50 | |
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 5 |
| Washing Fatness | 2-3 |
| Rubbing fastness(dry) | 4 |
| Rubbing fastness(wet) | 3 |
Direct yellow 50 Properties and Applications:
Soluble in water for goldenbrown, solubility of 60 g/L (60 ºC), 80 g/L (97 ºC), slightly soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for quality in red, dilute for green light blue after blue precipitation; In nitric acid solution for purple. The dye solution to join strong hydrochloric acid has the purple precipitation; Add thick sodium hydroxide solution with gold orangeprecipitation. Cellulose fiber of dyeing, in 80 ºC maximum when affinity, for the neutral, weak acid dye bath dyeing. Hard to not sensitive. In dyeing copper and iron ion colored light basic unchanged.
Mainly used for cotton, viscose, which silk dyeing and printing, and can directly printing, also can to discharge printing color. Can and disperse dyestuffs high temperature polyester/cotton with bath dyeing blended fabric. May also used for the dyeing nylon, leather, paper and electrochemical aluminum color.
Package, 25KG/DRUM, CARTON BOX, BAG
Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.
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