Description

3-[(2-Hydroxy-1-Naphthyl)Azo]Naphthalene-1,5-Disulphonic Acid, Barium Salt is a high-purity barium salt of a naphthalene-based azo dye intermediate. This compound is valued for its role as a key precursor in the synthesis of specialized pigments and colorants, offering excellent color strength and stability. It is primarily required by manufacturers in the pigment, dye, and specialty chemical industries for producing high-performance colorants used in inks, plastics, and coatings.

Application

• Pigment Manufacturing: Serves as a critical intermediate for the synthesis of high-performance organic pigments, particularly for applications requiring red and orange hues.
• Dye Production: Used in the manufacture of specialized azo dyes for industrial applications.
• Ink Formulations: Employed as a colorant precursor in the production of printing inks, including those for packaging and security printing.
• Plastics and Polymers: Acts as a colorant intermediate for coloring engineering plastics and synthetic fibers.
• Coatings and Paints: Utilized in the creation of pigments for industrial and automotive coatings that demand good lightfastness and chemical resistance.
• Research & Development: Used as a standard or reagent in chemical research focused on new colorant molecules and their properties.

Basic Information

Product Name	3-[(2-Hydroxy-1-Naphthyl)Azo]Naphthalene-1,5-Disulphonic Acid, Barium Salt
CAS No.	84030-38-6
Molecular Formula	C20H12BaN2O7S2
Molecular Weight	Approx. 586.82 g/mol
Synonyms	Barium 3-[(2-hydroxy-1-naphthyl)azo]naphthalene-1,5-disulfonate; C.I. Pigment Red 49:2; Pigment Red 49:2; Barium Lithol Red; Barium Salt of Lithol Red; 1,5-Naphthalenedisulfonic acid, 3-[(2-hydroxy-1-naphthyl)azo]-, barium salt (1:1); C.I. 15630:2
EINECS	Contact for details

Quality Control

Our production of 3-[(2-Hydroxy-1-Naphthyl)Azo]Naphthalene-1,5-Disulphonic Acid, Barium Salt adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical composition. Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical properties are available upon request to support your quality assurance processes.

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 tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Red to reddish-brown powder
Identification (IR)	Conforms to structure
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.