Description

Chromate(3-), Bis[5-Chloro-2-Hydroxy-3- [(2-Hydroxy-1-Naphthalenyl)Azo]Benzenesulfonato(3 -)]-, Trisodium is a high-purity, complex chromium azo dye salt used as a critical colorant and functional additive in advanced industrial applications. Its precise molecular structure provides excellent color fastness and stability, making it a valuable component where consistent performance is required. This product is essential for manufacturers in the pigments, inks, and specialty coatings sectors seeking reliable and high-quality color intermediates.

Application

• Pigment Manufacturing: Serves as a key intermediate for producing high-performance, complex inorganic color pigments (CICPs) with enhanced durability.
• Specialty Inks: Used in the formulation of industrial and security inks requiring specific chromatic properties and chemical resistance.
• Advanced Coatings: Incorporated into coatings for metals, plastics, and other substrates where color stability under environmental stress is critical.
• Dye Synthesis: Acts as a precursor or complexing agent in the synthesis of other azo dyes and metal-complex dyes.
• Research & Development: Utilized in chemical research as a model compound for studying chromium-azo complexes and their properties.
• Analytical Reagents: Potential use as a colorimetric reagent or indicator in specific analytical chemistry methodologies.

Basic Information

Item	Detail
Product Name	Chromate(3-), Bis[5-Chloro-2-Hydroxy-3- [(2-Hydroxy-1-Naphthalenyl)Azo]Benzenesulfonato(3 -)]-, Trisodium
CAS No.	6370-14-5
Molecular Formula	C34H18Cl2N4Na3O14S2
Molecular Weight	Contact for details
Synonyms	Trisodium Bis(5-chloro-2-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]benzenesulfonato)chromate(3-); Chromate(3-), bis[5-chloro-2-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonato(3-)], trisodium; C.I. Mordant Black 17; Mordant Black 17; Chromazol Black ES; Acid Chrome Black ES; Neolan Black WA; Azo Chrome Black ES
EINECS	Contact for details

Quality Control

Our production of Chromate(3-), Bis[5-Chloro-2-Hydroxy-3- [(2-Hydroxy-1-Naphthalenyl)Azo]Benzenesulfonato(3 -)]-, Trisodium adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including purity assay and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and relevant physical-chemical parameters is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a low-humidity environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Heavy Metals (as Pb)	Max. 20 ppm
Chromium Content	Contact for details
Solubility	Soluble in water, alkaline solutions

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