Description

Mordant Blue 3 is a synthetic, metallizable azo dye widely recognized for its ability to form stable, colored complexes with metal ions. This property is critical for achieving excellent colorfastness, particularly to washing and light, in various dyeing and printing processes. It is an essential chemical for industries requiring durable and vibrant coloration on substrates like wool, silk, and nylon. Mordant Blue 3 CAS NO 3564-18-9 is a key component for professionals in textile manufacturing, leather finishing, and specialized staining applications.

Application

• Textile Dyeing: Primarily used for dyeing protein fibers such as wool and silk, often in conjunction with chromium or other metal mordants to produce deep, fast blue shades.
• Leather Coloring: Employed in the dyeing and finishing of leather goods to provide rich, durable color that withstands processing and use.
• Biological Staining: Used in histology and microscopy as a specialized stain for tissue samples, often in combination with other dyes.
• Ink Formulation: A component in the manufacture of certain specialty inks requiring good stability and color intensity.
• Paper Coloring: Applied in the production of colored papers where specific shade and fastness properties are needed.
• Research & Development: Serves as a standard or reagent in chemical research, analytical methods, and dye chemistry studies.

Basic Information

Product Name	Mordant Blue 3
CAS No.	3564-18-9
Molecular Formula	C15H9N2NaO5S
Molecular Weight	376.30 g/mol
Synonyms	Acid Chrome Blue K; Chromoxane Pure Blue BL; C.I. Mordant Blue 3; C.I. 43820; Eriochrome Azurol B; Chrome Azurol B; Sodium 5-[(5-chloro-2-hydroxyphenyl)azo]-6-hydroxy-2-naphthalenesulfonate; Solochrome Azurine B
EINECS	222-622-9

Quality Control

Our Mordant Blue 3 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against stringent in-house specifications for critical parameters including dye content, shade, solubility, and metal content. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with every shipment to guarantee it meets the demands of industrial applications.

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 container must be kept tightly closed to protect from moisture and contamination.

Specification

Item	Specification
Appearance	Dark Blue to Bluish-Black Powder
Identification (IR)	Conforms to Standard
Assay (Dye Content)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Shade	Conforms to Standard
Ash Content	Max. 1.0%

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