Description

Chromate(5-), [4-hydroxy-6-[(2-hydroxy-5-methylphenyl)azo]-3-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-2-naphthalenesulfonato(4-)][4-hydroxy-6-[(2-hydroxy-5-methylphenyl)azo]-3-[(2-hydroxy-5-nitro-3-sulfophenyl)azo]-2-naphthalenesulfonato(4-)]-, potassium salt is a high-purity, complex chromium azo dye intermediate. This compound is valued for its role in synthesizing specialized pigments and dyes, offering excellent color fastness and stability. It is primarily used by manufacturers in the textile, leather, and specialty coatings industries seeking to produce high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for producing high-grade, wash-fast azo dyes for natural and synthetic fibers.
• Leather Finishing: Used in the synthesis of pigments for coloring leather goods, providing rich, durable hues.
• Specialty Pigments: Serves as a precursor for manufacturing complex inorganic colorants (CICs) and high-performance pigments for plastics and coatings.
• Ink Formulation: Employed in the production of specialized printing inks requiring specific chromatic properties and chemical resistance.
• Research & Development: Utilized in chemical research for developing new chromogenic materials and studying metal-complex dye chemistry.
• Analytical Reagents: Potential use as a colorimetric reagent or indicator in specific analytical chemistry applications.

Basic Information

Product Name	Chromate(5-), [4-hydroxy-6-[(2-hydroxy-5-methylphenyl)azo]-3-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-2-naphthalenesulfonato(4-)][4-hydroxy-6-[(2-hydroxy-5-methylphenyl)azo]-3-[(2-hydroxy-5-nitro-3-sulfophenyl)azo]-2-naphthalenesulfonato(4-)]-, potassium salt
CAS No.	114886-92-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Potassium chromium azo complex; Chromium complex dye intermediate; CI Mordant Black; Azo chromium complex; Chromate(5-), bis[4-hydroxy-6-[(2-hydroxy-5-methylphenyl)azo]-3-[(2-hydroxy-3(or 5)-nitro-5(or 3)-sulfophenyl)azo]-2-naphthalenesulfonato(4-)]-, potassium; Mordant Black dye intermediate; Chromium azo dye precursor
EINECS	Contact for details

Quality Control

Our Chromate(5-) potassium salt is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent purity, composition, and performance for your synthesis processes. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, impurity profile, and physical specifications. Our quality system is designed to support reliable and reproducible results in downstream manufacturing.

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 product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 2.0%
Heavy Metals (as Pb)	Max. 20 ppm
Chromium Content	Contact for details
Sulfated Ash	Contact for details

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