Description

Pigment Red 38 is a high-performance, organic azo pigment known for its vibrant red hue and excellent color strength. This pigment is valued for its ability to provide durable and consistent coloration in a variety of demanding industrial applications. It is primarily sought after by manufacturers in the plastics, coatings, inks, and synthetic fiber industries for its reliable performance and compatibility.

Application

• Coloration of plastics and synthetic resins, including PVC, polyolefins, and engineering plastics.
• Manufacturing of high-quality industrial coatings, automotive paints, and decorative finishes.
• Formulation of printing inks for packaging, publications, and specialty printing.
• Mass pigmentation of synthetic fibers such as polypropylene and polyester.
• Coloring of rubber products, including hoses, seals, and footwear.
• Use in artists' colors and other specialty pigment applications requiring a bright red shade.

Basic Information

Product Name	Pigment Red 38
CAS No.	6358-87-8
Molecular Formula	C₂₄H₁₈Cl₂N₄O₂
Molecular Weight	465.33 g/mol
Synonyms	Pigment Red 38; C.I. Pigment Red 38; C.I. 21120; 1-[(2,5-Dichlorophenyl)azo]-2-hydroxy-3-naphthamide; Naphthol Red FGR; Permanent Red FGR; Vulcan Fast Red FGR; Pyrazolone Red
EINECS	228-767-9

Quality Control

Our Pigment Red 38 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, hue, particle size distribution, and chemical purity. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Conforms to Standard
Purity (HPLC)	≥ 96.0%
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size (D50)	0.2 - 0.5 μm
Oil Absorption	40 - 60 g/100g
Lightfastness	≥ 6 (ISO 105-B02)
Heat Resistance	≥ 200°C

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