Product Name: Direct Yellow 50C.I. No.: 29025CAS No.:
3214-47-9Molecular Formula: C35H24N6Na4O13S4Molecular Weight:
956.82Relative Name:Direct Yellow RS,Direct Fast Yellow FTF,Direct
Fast Yellow RSShade: red light yellow Direct Yellow
50 Physical Properties and light fastness,
solubility. Direct
Yellow 50Dyeing depth %2Insolubles %0.15Light Fastness5Washing
Fatness2-3Rubbing fastness(dry)4Rubbing 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.EXHIBITIONS
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