Direct Fast Light Yellow 5GL
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Direct Fast Yellow 5GL
Color Index Number C.I. Direct Yellow 27 (13950)
Molecular Weight: 662
Molecular Formula: C25H20O9N4S3Na2
Quality Specifications: (1) Appearance: Dull yellow uniform powder.
(2) Strength: 100±3 of the standard
(3) Shade: Approximate to the standard - slight
Yellow powder, soluble in water to give a lemon yellow color, soluble in fibers, sparingly soluble in ethanol. Appears orange in benzene or carbon tetrachloride. Insoluble in other organic solvents.
Mainly used for dyeing cotton, linen, viscose, or fiber fabrics, and can also be used for dyeing silk, wool, nylon, and their blended fabrics. Other applications include dyeing leather and paper pulp.
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