Description

Pigment Yellow 183 is a high-performance, green-shade diarylide yellow pigment known for its excellent color strength and durability. This product is valued for its superior lightfastness, heat stability, and chemical resistance, making it a reliable choice for demanding industrial applications. It is primarily used by manufacturers in the plastics, coatings, and printing ink industries seeking vibrant, consistent, and long-lasting yellow coloration.

Application

• Plastics Coloring: For coloring polyolefins (PP, PE), PVC, engineering plastics, and synthetic fibers, offering excellent dispersion and heat stability during processing.
• Industrial Coatings: Used in automotive OEM and refinish paints, industrial maintenance coatings, and coil coatings requiring high weatherfastness.
• Printing Inks: Formulated into high-grade offset, gravure, flexographic, and packaging inks for consistent print quality and color.
• Masterbatch Production: A key component in the manufacture of color and additive concentrates for the plastics industry.
• Specialty Applications: Suitable for artists' colors, construction materials, and other applications demanding high pigment performance.

Basic Information

Product Name	Pigment Yellow 183
CAS No.	65212-77-3
Molecular Formula	C36H32Cl2N6O4
Molecular Weight	683.59 g/mol
Synonyms	Pigment Yellow 183; C.I. Pigment Yellow 183; Diarylamide Yellow HR; Benzidine Yellow HR; 3,3'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-methyl-2-butanone] 1,1'-(3,3'-Dichlorobiphenyl-4,4'-diyl)bis(azo)di(acetylacetone); PY 183; C.I. 21108
EINECS	265-580-2

Quality Control

Our Pigment Yellow 183 is manufactured under a stringent quality management system. Each batch is tested against rigorous internal specifications to ensure consistency in coloristic properties, physical form, and chemical composition. A comprehensive Certificate of Analysis (COA) detailing parameters such as color strength, hue, particle size distribution, and purity is provided to guarantee product reliability and performance for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials and sources of ignition. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Yellow Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Standard
Volatile Matter (105°C)	≤ 2.0%
Residue on Sieve (63 µm)	≤ 0.1%
pH Value (Aqueous Slurry)	6.0 - 8.0
Oil Absorption	40 - 60 g/100g
Lightfastness (1-8)	≥ 7
Heat Stability (Plastics, 5 min)	≥ 260°C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.