Description

Barium Bis[4-[(2-Hydroxy-1-Naphthyl)Azo]Benzenesulphonate] is a metallized azo dye complex, specifically a barium salt of a naphthol-based sulfonated azo compound. This product is valued for its excellent color strength, lightfastness, and chemical stability, making it a critical component in high-performance pigment formulations. It is primarily required by manufacturers in the coatings, plastics, and specialty printing ink industries seeking durable and vibrant coloration.

Application

• Industrial Pigments: A key colorant for producing high-grade, weather-resistant pigments used in automotive and industrial coatings.
• Plastics Coloring: Used as a masterbatch or compounding additive to impart stable, non-migrating color to engineering plastics and polymers.
• Specialty Inks: Employed in the formulation of high-performance printing inks, including those for packaging and security applications, due to its chemical resistance.
• Textile Dyeing: Suitable for dyeing synthetic fibers where a high degree of colorfastness to light and washing is required.
• Lacquers and Paints: Provides durable coloration for industrial finishes, marine paints, and other protective coating systems.
• Research & Development: Serves as a reference standard or intermediate in the synthesis of novel dye and pigment molecules in chemical R&D.

Basic Information

Product Name	Barium Bis[4-[(2-Hydroxy-1-Naphthyl)Azo]Benzenesulphonate]
CAS No.	15782-04-4
Molecular Formula	C34H22BaN4O8S2
Molecular Weight	794.04 g/mol
Synonyms	Barium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulfonate; C.I. Pigment Red 57:1; Lithol Rubine Barium Salt; Permanent Carmine FBB; Red 57:1; Rubine Toner; 2-Naphthalenol, 1-[(4-sulfophenyl)azo]-, barium salt (2:1); Barium Lithol Rubine
EINECS	239-879-2

Quality Control

Our production of Barium Bis[4-[(2-Hydroxy-1-Naphthyl)Azo]Benzenesulphonate] adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, and chemical purity. Certificates of Analysis (COA) detailing specific test results are available upon request to support your quality assurance and regulatory compliance 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). Keep away from incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Red to bluish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Std.)
Shade	Within agreed tolerance
Moisture Content	≤ 2.0%
Ash Content	To be specified
Particle Size	To be specified

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