Description

Barium 3-[(1-Hydroxy-2-Naphthyl)Azo]Naphthalene-1,5-Disulphonate is a high-purity, organometallic azo dye complex valued for its excellent color properties and stability. This compound is essential for industries requiring precise and durable pigments for demanding applications. It is primarily utilized by manufacturers in the production of specialized inks, coatings, and high-performance plastics where consistent color quality is critical.

Application

• Pigment for Industrial Inks: Used as a key colorant in solvent-based and specialty printing inks, providing vivid hues and good lightfastness.
• Coloration of Polymers and Plastics: Imparts stable color to engineering plastics, synthetic fibers, and masterbatches during high-temperature processing.
• Specialty Coatings and Paints: Employed in formulations for automotive, industrial, and decorative coatings that require weather resistance.
• Laboratory Reagent and Stain: Serves as a histological stain or a colorimetric reagent in analytical chemistry and biological research.
• Dye Intermediate: Acts as a precursor or intermediate in the synthesis of more complex dyes and pigments.
• Paper and Leather Coloring: Used in the dyeing of specialty papers and treated leathers.

Basic Information

Product Name	Barium 3-[(1-Hydroxy-2-Naphthyl)Azo]Naphthalene-1,5-Disulphonate
CAS No.	67990-36-7
Molecular Formula	C₂₀H₁₂BaN₂O₈S₂
Molecular Weight	625.82 g/mol
Synonyms	Barium 1,5-Naphthalenedisulfonate azo dye; Barium Lake Red; C.I. Pigment Red; 3-[(1-Hydroxy-2-naphthyl)azo]naphthalene-1,5-disulfonic acid, barium salt; Barium 3-[(1-Hydroxy-2-naphthalenyl)azo]-1,5-naphthalenedisulfonate; Azo Barium Lake; 1,5-Naphthalenedisulfonic acid, 3-[(1-hydroxy-2-naphthalenyl)azo]-, barium salt (1:1)
EINECS	Contact for details

Quality Control

Our Barium 3-[(1-Hydroxy-2-Naphthyl)Azo]Naphthalene-1,5-Disulphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets precise specifications. Certificates of Analysis (COA) documenting purity, heavy metal content, and other critical parameters 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Red to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Slightly soluble in water; soluble in concentrated sulfuric acid

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