Solvent Yellow 56

Solvent Yellow 56

Solvent 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 registry number: 219-616-8
II. Physical Properties
Appearance: Deep reddish-yellow powder.
Melting point: 94-96°C, a property that determines the thermal stability of Oil-soluble Yellow 56 during processing.
Boiling point: 397.2°C at 760 mmHg, the high boiling point ensures the stability of the dye in solvents.
Density: 1g/cm³, this property significantly affects the solubility and dispersibility of the dye.
Flash point: 194°C, the flash point relates to the safety of the dye during storage and use.
Refractive index: 1.556, the refractive index is an important parameter for measuring the optical properties of a substance.
III. Application Performance
Heat resistance: Oil-soluble Yellow 56 can withstand temperatures up to 220°C in plastics (such as PS), allowing it to maintain stable color during high-temperature processing.
Light fastness: It has good light fastness and does not fade easily even under prolonged exposure to light.
Coloring power: High coloring power with bright and vivid tones, providing excellent visual effects for products.
Solubility: Easily soluble in organic solvents, insoluble in water. This property determines the applicability of Oil-soluble Yellow 56 in fields such as coatings, inks, and plastics.
IV. Application Areas
Uses: Mainly used for the mass coloration of polyester fibers.
Oil coloring: Used for coloring various oils (such as lubricants, diesel, etc.) to enhance product identification and aesthetics.
Plastic coloring: Widely used for coloring plastics (such as PS, HIPS, RPVC, SAN, etc.), imparting bright colors and long-lasting stability to products.
Ink coloring: Used as a colorant in inks for coloring various printed materials, improving the color effect and visual appeal of printed products.
Other applications: Also used for coloring waxes and fats, as well as in the preparation of smoke dyes.
Our company's annual production capacity for this product reaches 2,000 tons. It is mainly sold to various provinces and cities across the country, including North China, South China, Northeast China, Hebei, Shandong, Tianjin, Beijing, Liaoning, Shanxi, Anhui, Zhejiang, Guangzhou, etc.
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 (Brilliant) 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.