Description

C. I. Direct Black 62 is a high-performance, water-soluble azo dye belonging to the direct dye class, widely recognized for its deep black shade and excellent substantivity to cellulosic fibers. Its primary value lies in providing a cost-effective and reliable coloring solution with good wash and light fastness properties for textile applications. This dye is essential for manufacturers in the textile industry, particularly for dyeing cotton, viscose, and other regenerated cellulose materials, where it delivers consistent and uniform results.

Application

• Primary dyeing of cotton fabrics and yarns.
• Coloration of viscose (rayon) and other regenerated cellulose fibers.
• Used in the production of paper for deep black shades.
• Dyeing of leather goods.
• Potential use in coloring wood and other porous materials.
• Formulation of ink for specific industrial applications.

Basic Information

Product Name	C. I. Direct Black 62
CAS No.	12221-89-5
Molecular Formula	C34H25N9Na4O16S4
Molecular Weight	1083.9 g/mol
Synonyms	Direct Black 62; Direct Black BN; C.I. 29125; Direct Deep Black EW; Direct Black E; Direct Black G; Direct Black M; Atul Direct Black BN; Amanil Black B; Benzamine Black BN
EINECS	Contact for details

Quality Control

Our C. I. Direct Black 62 is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance. The product undergoes rigorous testing for key parameters including shade, strength, solubility, and fastness properties. Certificates of Analysis (COA) detailing purity, dye content, and impurity profiles 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. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Black to Bluish-Black Powder
Identification (IR)	Conforms to Standard
Dye Content	≥ 95%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to Standard
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0

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