Description

C.I. Pigment Yellow 36 is a high-performance, diarylide yellow pigment widely recognized for its durability and cost-effectiveness. This pigment is valued for providing strong, opaque yellow coloration with excellent lightfastness and heat stability in demanding applications. It is an essential raw material for manufacturers in the plastics, printing ink, and coatings industries seeking reliable and vibrant yellow hues.

Application

• Plastics Coloring: Masterbatch and compound production for LDPE, HDPE, PP, PVC, and other polymers requiring high-temperature processing stability.
• Printing Inks: Formulation of offset, flexographic, and gravure inks, particularly for packaging and publications, due to its good printability and color strength.
• Industrial Coatings: Used in solvent-based and water-based paint systems for automotive refinish, industrial machinery, and architectural applications.
• Synthetic Fibers: Mass pigmentation of fibers such as polypropylene and polyamide to achieve lightfast yellow colors.
• Rubber Products: Coloring of technical rubber goods, including hoses, seals, and mats.
• Paper Coatings: Provides opaque, bright yellow shades in specialty paper and paperboard coatings.

Basic Information

Product Name	C.I. Pigment Yellow 36
CAS No.	37300-23-5
Molecular Formula	C₃₄H₂₈Cl₂N₆O₄
Molecular Weight	647.53 g/mol
Synonyms	Pigment Yellow 36; Diarylide Yellow AAA; Benzidine Yellow AAA; C.I. 12745; 3,3'-Dichlorobenzidine-4,4'-diylbis(azo)bis(2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one); 1,1'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one]; AAA Yellow; Permanent Yellow AAA
EINECS	253-481-6

Quality Control

Our production of C.I. Pigment Yellow 36 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, hue, particle size distribution, and rheological properties. A comprehensive Certificate of Analysis (COA) detailing purity, physical characteristics, and performance data is provided with each shipment to support your quality assurance processes.

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 heat sources and incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to maintain optimal properties.

Specification

Item	Specification
Appearance	Yellow Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Residue on Sieve (45μm)	≤ 0.5 %
Volatile Matter (105°C)	≤ 2.0 %
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Oil Absorption	40 - 60 g/100g
Lightfastness (1-8 Scale)	≥ 6
Heat Resistance	≥ 200 °C

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