Description

Pigment Orange 13 is a high-performance, diarylide-based organic pigment renowned for its excellent color strength and durability. It provides a bright, reddish-orange hue with superior lightfastness, weather resistance, and heat stability, making it a cost-effective solution for demanding applications. This pigment is essential for manufacturers in the plastics, coatings, and printing ink industries seeking vibrant, long-lasting color performance. Its chemical stability ensures consistent results in both mass coloration and surface coating processes.

Application

• Plastics Coloring: Masterbatch and compound production for polyolefins (PP, PE), PVC, and engineering plastics, offering excellent dispersion and heat stability.
• Industrial Coatings: Used in automotive refinish paints, industrial maintenance coatings, and coil coatings for its durability and weather resistance.
• Printing Inks: Formulation of offset, flexographic, and gravure inks for packaging and publications, providing high color strength and print quality.
• Synthetic Fibers: Mass pigmentation of fibers such as polypropylene and polyamide for textiles and carpets.
• Specialty Applications: Coloring for artists' colors, construction materials (concrete, mortar), and specialty paper.

Basic Information

Product Name	Pigment Orange 13
CAS No.	3520-72-7
Molecular Formula	C32H24Cl2N6O4
Molecular Weight	619.47 g/mol
Synonyms	Pigment Orange 13; C.I. Pigment Orange 13; Diarylide Orange; 3,3'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-chloro-2-methylbenzamide]; Benzamide, 4-chloro-3-[[4-[[(2-chloro-5-methylphenyl)amino]carbonyl]-2-[(2-methoxyphenyl)azo]phenyl]azo]-N-(2-chlorophenyl)-; C.I. 21110; PO 13; Diarylamide Orange HR
EINECS	222-529-1

Quality Control

Our production of Pigment Orange 13 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as color strength, hue, particle size distribution, and chemical purity are rigorously tested against established internal and industry standards. A comprehensive Certificate of Analysis (COA), detailing all relevant specifications and test results, is provided with every shipment to guarantee product integrity for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. Under these conditions, the product maintains its stability and performance characteristics.

Specification

Item	Specification
Appearance	Reddish-orange powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Purity (HPLC)	≥ 96.0%
Volatile Matter (105°C)	≤ 2.0%
Ash Content	≤ 1.0%
Water Soluble Matter	≤ 1.5%
Particle Size (D50)	0.2 - 0.5 μm
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Lightfastness (1/3 SD)	≥ 7 (Blue Scale)
Heat Resistance	≥ 200°C

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