Oil Soluble Yellow 56

Oil Soluble Yellow 56

Solvent Yellow 56
Chinese aliases: Oil Soluble Yellow 56, Solvent Yellow DE, Transparent Yellow 3GS, Transparent Yellow 2G, Sudan Yellow
I. Chemical Structure and Basic Information
Azo-based yellow dye
Molecular formula: C16H19N3
Molecular weight: 253.34
CAS number: 2481-94-9
English name: Solvent Yellow 56
EINECS registration number: 219-616-8
II. Physical Properties
Appearance: Deep reddish-yellow powder.
Melting point: 94-96°C, which determines the thermal stability of Oil Soluble Yellow 56 during processing.
Boiling point: 397.2°C at 760 mmHg, ensuring the stability of the dye in solvents.
Density: 1g/cm3, which significantly affects the solubility and dispersibility of the dye.
Flash point: 194°C, relating to the safety of the dye during storage and use.
Refractive index: 1.556, an important parameter for measuring the optical properties of the substance.
III. Application Performance
Heat resistance: Oil Soluble Yellow 56 exhibits heat resistance up to 220°C in plastics (e.g., PS), maintaining stable color during high-temperature processing.
Light fastness: Good light fastness, resistant to fading even under prolonged exposure to light.
Coloring power: High tinting strength with bright and vivid hues, providing excellent visual effects for products.
Solubility: Easily soluble in organic solvents, insoluble in water. This property determines its applicability in coatings, inks, plastics, and other fields.
IV. Application Areas
Usage: Primarily used for mass coloration of polyester fibers.
Oil coloring: Used for coloring various oils (e.g., lubricants, diesel) to enhance product identification and aesthetics.
Plastic coloring: Widely applied in coloring plastics (e.g., PS, HIPS, RPVC, SAN), imparting bright colors and lasting stability to products.
Ink coloring: Used as a colorant in inks for various printed materials, improving color effects and visual appeal.
Other applications: Also used for coloring waxes, fats, and in the preparation of smoke dyes.
Our company's annual production capacity for this product reaches 2,000 tons. It is mainly sold to North China, South China, Northeast China, Hebei, Shandong, Tianjin, Beijing, Liaoning, Shanxi, Anhui, Zhejiang, Guangzhou, and other provinces and cities nationwide.
Our company primarily produces Benzidine Yellow, Permanent Yellow 2G, Permanent Yellow 2GS, Permanent Yellow HR, 1151 Permanent Orange G, Permanent Orange G, Rhodamine 6B, 3118 Lightfast Scarlet BBN, 3120 Lightfast Scarlet (Bright) BBC,
Permanent Red 2BP, 808 Scarlet Powder, 3132 Scarlet Powder, Pigment Orange 34, Golden Red, Golden Yellow, Phthalocyanine Blue B, Phthalocyanine Green G, Phthalocyanine Blue BGS, Fertilizer Coloring Pigments, Dry Powder Fire Extinguisher Coloring Pigments,
Fire Extinguisher Dry Powder Coloring Pigments, Oil Soluble Yellow 14, Oil Soluble Yellow 16, Oil Soluble Yellow 56, Oil Soluble Red 23, Oil Soluble Red 24, Oil Soluble Red 27, and other products.