Pigment Yellow 150 | 5GN Yellow E4G Yellow | CAS 68511-62-6

Pigment Yellow 150

Chinese alias: 5GN Yellow, E4G Yellow, Nylon Fiber Boiling Pigment
English name: Pigment Yellow 150
Molecular formula: C8H6N6O6Ni
Molecular weight: 340.86
CAS registry number: 68511-62-6
EINECS registry number: 270-944-8

Physicochemical properties
Classification: Azo nickel complex
Appearance: Dark yellow powder
Hue: Greenish yellow
Density/(g/cm³): 2.0-2.1
Bulk density/(lb/gal): 17.0-17.0
Specific surface area/(m²/g): 50
Oil absorption/(g/100g): 35-45
pH value/(10% slurry): 6.5-7.5
Hiding power: Semi-transparent greenish yellow

Product properties
Lightfastness: Grade 8
Heat resistance: 300°C
Acid resistance: Grade 5
Alkali resistance: Grade 5
Weather resistance: Grade 4
Migration resistance: Grade 5
Alcohol resistance: Grade 5
Ester resistance: Grade 5
Benzene resistance: Grade 5
Ketone resistance: Grade 5

Product applications
When used for coloring coatings, inks, and plastics, it exhibits a bright greenish yellow hue. Due to the formation of intramolecular nickel complexes, it possesses excellent heat stability and weather fastness, along with good flow properties, making it suitable for various polymer material applications.
In nylon product coloring, it does not migrate or discolor after boiling at 150°C for 15 minutes.
Pigment Yellow 150 is recommended for spin dyeing of polypropylene and polyamide fibers. In such applications, the pigment demonstrates good thermal stability and excellent weather resistance.
Under general injection molding conditions, Pigment Yellow 150 may react with zinc sulfide in polyamides, hence it is generally not used in polyamide injection molding processes.

Uses: Primarily recommended for industrial coatings and printing ink coloration, particularly excelling in dyeing and printing of fiber materials such as nylon. Additionally, it can be used in plastics, rubber, coatings, inks, and other industries.