Pigment Yellow 139

Chinese alias: Isoindolinone Yellow Pigment
English name: Pigment Yellow 139
Molecular formula: C16H9N5O6
Molecular weight: 367.2726
CAS Registry Number: 36888-99-0
EINECS Registry Number: 253-256-2

Physicochemical Properties
Classification: Azo Condensation Pigment
Appearance: Reddish yellow powder
Hue: Reddish yellow
Density/(g/cm3): 1.74
Bulk density/(lb/gal): 3.3; 5.0
Average particle size/μm: 154-339
Specific surface area/(m2/g): 22
Tinting strength ≥: 100
Oil absorption/(g/100g): 45-69
pH value/(10% slurry): 6-8
Opacity: Semi-transparent

Product Properties
Performance: Bright color, strong tinting strength, excellent lightfastness, solvent resistance, non-migratory
Migration resistance: Grade 4-5
Heat resistance: 250°C
Lightfastness: Grade 8
Acid resistance: Grade 5
Alkali resistance: Grade 5
Weather resistance: Grade 4

Product Application: A high-performance organic yellow pigment widely used in printing inks and plastic products coloring, especially for high-performance industrial products such as high-end coatings (automotive refinish paints)

Uses: Mainly used for automotive coatings, powder coatings, inks, industrial paints, plastics, rubber, and other product coloring.