Description

4-[(4-Chloro-6-Sulpho-m-Tolyl)Azo]-3-Hydroxynaphthalene-2,7-Disulphonic Acid, Calcium Sodium Strontium Salt is a high-purity, complex azo dye intermediate and pigment salt. This compound is valued for its excellent colorant properties and stability, making it a critical component in the production of high-performance pigments. It is primarily sought by manufacturers in the pigments, dyes, inks, and specialty coatings industries for applications requiring vibrant and durable coloration.

Application

• Primary Intermediate for High-Performance Pigments: A key precursor in the synthesis of complex inorganic color pigments (CICPs) and other azo-based pigments.
• Industrial Coatings and Paints: Imparts durable, lightfast color to automotive, industrial, and architectural coatings.
• Printing Inks: Used in the formulation of specialty printing inks for packaging and publications requiring specific color strength and stability.
• Plastics and Masterbatch Coloring: Provides coloration for engineering plastics and polymer compounds where heat and light stability are crucial.
• Textile Dyeing Auxiliary: Functions as an intermediate in the production of dyes for synthetic fibers.
• Research and Development: Serves as a standard or starting material in chemical R&D for novel colorant systems.

Basic Information

Item	Details
Product Name	4-[(4-Chloro-6-Sulpho-m-Tolyl)Azo]-3-Hydroxynaphthalene-2,7-Disulphonic Acid, Calcium Sodium Strontium Salt
CAS No.	85005-83-0
Molecular Formula	C17H9ClN2O10S3 · xCa · yNa · zSr
Molecular Weight	Contact for details
Synonyms	Pigment Red 52:2 (Calcium Salt); C.I. 15860:2; 4-[(4-Chloro-6-sulfo-m-tolyl)azo]-3-hydroxy-2,7-naphthalenedisulfonic acid, calcium sodium strontium salt; Lithol Rubine BCA; Rubine Toner; CI 15860:2; Calcium Lithol Rubine; Azo Pigment Red 52:2
EINECS	Contact for details

Quality Control

Our production of 4-[(4-Chloro-6-Sulpho-m-Tolyl)Azo]-3-Hydroxynaphthalene-2,7-Disulphonic Acid, Calcium Sodium Strontium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical composition. Comprehensive Certificates of Analysis (COA) detailing assay, impurity profile, and physical specifications are available upon request to support your quality assurance and regulatory needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Red to bluish-red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Contact for details
Color Strength	Standard ± 5%

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