Pigment Yellow 180 | Permanent Yellow HG | CAS 77804-81-0

Pigment Yellow 180

Chinese alias: Pigment Yellow HG, Permanent Yellow HG
English name: Pigment Yellow 180
Molecular formula: C36H32N10O8
Molecular weight: 732.78
CAS registry number: 77804-81-0
EINECS registry number: 278-770-4
Physical and chemical properties
Classification: Disazo organic pigment
Appearance: Greenish bright yellow powder
Hue: Greenish yellow
Density (g/cm³): 1.52
Average particle size (μm): 320
Specific surface area (m²/g): 24
Melting point (°C): 360
Oil absorption (g/100g): 40-60
pH value (10% slurry): 6.5-8.5
Covering power: Semi-transparent type
Product properties: HG Yellow is a greenish yellow disazo organic pigment, Pigment Yellow 180, and is the only disazo pigment in the benzimidazolone yellow series. It features excellent heat resistance, light fastness, migration resistance, good dispersibility, tinting strength, environmental friendliness, and stable chemical properties. It remains stable in high-density polyethylene up to 290°C for 3 minutes. It does not cause deformation in HDPE injection-molded products, resists migration in soft PVC, and exhibits high light fastness in both soft and hard PVC. It is particularly suitable for high-end paints, inks, plastics (such as polycarbonate, polystyrene, and polyester), rubber coloring, and mass coloration of synthetic fibers.
Light fastness: Grade 7
Heat resistance: 280°C
Weather resistance: Grade 4
Migration resistance: Grade 5
Acid resistance: Grade 5
Alkali resistance: Grade 5
Water resistance: Grade 5
Oil resistance: Grade 4
Product applications:
Engineering plastics: Particularly suitable for coloring engineering plastics such as polycarbonate, polystyrene, and polyester.
Inks: Can be used in the production of various printing inks, such as offset inks, gravure inks, solvent-based inks, and water-based inks, ensuring stable coloring of the inks.
Coatings: Can be used in the production of coatings of various colors, such as architectural coatings and automotive coatings. Especially suitable for powder coatings, it can withstand temperatures above 290°C and offers excellent light fastness.
Rubber: Can be used for coloring rubber products, such as tires and rubber tubes.
Others: Also used in mass coloration of synthetic fibers, as well as in paints, high-grade plastic resins, coating printing, and coloring of soft plastic products.
Uses: Engineering plastics, soft plastic products, inks, coatings, rubber, mass coloration of synthetic fibers, coating printing, and other fields.