Description

Chocolate Brown Ht is a high-performance, synthetic organic pigment known for its rich, stable brown hue. This product is valued for its excellent color strength, lightfastness, and chemical resistance, making it a reliable choice for demanding industrial applications. It is primarily utilized by manufacturers in the coatings, plastics, and specialty inks industries where consistent, durable coloration is critical.

Application

• Industrial and automotive coatings and paints requiring weather-resistant pigmentation.
• Coloration of engineering plastics, masterbatches, and synthetic fibers.
• Manufacturing of high-quality printing inks, including packaging and publication inks.
• Pigmentation for construction materials such as concrete, mortar, and roofing granules.
• Coloring agent for specialty artistic paints and artist-grade materials.
• Use in the formulation of wood stains and decorative finishes.

Basic Information

Product Name	Chocolate Brown Ht
CAS No.	4353-89-3
Molecular Formula	C24H15FeN7O6
Molecular Weight	553.27 g/mol
Synonyms	Pigment Brown 25; C.I. 12510; Iron Complex Brown; 1,3-Benzenedicarboxamide, N1,N3-bis(5-((2-hydroxy-5-nitrophenyl)azo)-2-hydroxyphenyl)-, iron complex; Chocolate Brown HT; C.I. Pigment Brown 25; Chocolate Brown; Iron Azo Complex Brown
EINECS	224-424-9

Quality Control

Our Chocolate Brown Ht is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent color value, purity, and performance characteristics. A comprehensive Certificate of Analysis (COA) detailing assay, shade, strength, and physical properties is provided with every shipment to guarantee compliance with your specifications.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Brown Powder
Identification (IR)	Conforms
Assay (Pigment Content)	≥ 96.0%
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Volatile Matter (105°C)	≤ 2.0%
Water Soluble Matter	≤ 1.5%
pH (Aqueous Extract)	5.0 - 7.5
Particle Size (Hegman Grind)	≥ 6.0
Lightfastness	≥ 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.