Description

[7-Hydroxy-8-[(4-Sulpho-1-Naphthyl)Azo]Naphthalene-1,3-Disulphonato(3-)]Aluminium is a metal-complex azo dye, valued for its excellent color fastness and stability. This compound is primarily used as a high-performance pigment and colorant in demanding industrial applications where durability is critical. It is essential for manufacturers in the coatings, plastics, and specialty inks industries seeking vibrant, long-lasting coloration.

Application

• Industrial Coatings and Paints: Used as a pigment for automotive, architectural, and industrial coatings requiring high weather resistance and UV stability.
• Plastics and Polymer Coloring: Imparts stable coloration to engineering plastics, masterbatches, and synthetic fibers during high-temperature processing.
• Specialty Inks: A key component in high-performance printing inks, including those for security printing and outdoor applications.
• Textile Dyeing (Specialized): Employed in dyeing synthetic fibers where metal-complex dyes offer superior wash and light fastness.
• Paper Coloring: Used for high-grade paper products where color consistency and bleed resistance are important.
• Artists' Colors and Pigments: Serves as a component in professional-grade artists' paints and pigments.

Basic Information

Product Name	[7-Hydroxy-8-[(4-Sulpho-1-Naphthyl)Azo]Naphthalene-1,3-Disulphonato(3-)]Aluminium
CAS No.	15876-47-8
Molecular Formula	C20H11AlN2O11S3
Molecular Weight	586.55 g/mol (approx.)
Synonyms	Aluminium 7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]naphthalene-1,3-disulfonate; C.I. Mordant Red 7; Aluminium complex of Mordant Red 7; Alizarin Bordeaux B; Alizarin Bordeaux BA; Alizarin Red B; Acid Alizarin Bordeaux B; 1-Naphthalenesulfonic acid, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-, aluminum complex
EINECS	240-015-6

Quality Control

Our production of [7-Hydroxy-8-[(4-Sulpho-1-Naphthyl)Azo]Naphthalene-1,3-Disulphonato(3-)]Aluminium adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance. Each lot is tested for critical parameters including color strength, hue, and impurity profile. Certificates of Analysis (COA) documenting purity, physical properties, and performance characteristics 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The product is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption and color degradation.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (Dye Content)	≥ 95%
Moisture (Loss on Drying)	≤ 5.0%
Ash Content	≤ 20.0%
Water Solubility	Soluble
Heavy Metals (as Pb)	≤ 20 ppm
Particle Size (Typical)	Pass through 100 mesh

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