Description

Acid Blue 83 is a synthetic anthraquinone dye widely recognized for its brilliant blue hue and excellent colorfastness properties. This high-performance colorant is essential for achieving deep, vibrant shades with superior light and wash fastness in demanding industrial applications. It is primarily utilized by manufacturers in the textile, leather, and paper industries seeking consistent, high-quality coloration for nylon, silk, wool, and other protein-based fibers.

Application

• Textile Dyeing: Primary application for dyeing nylon, silk, wool, and other polyamide fibers to achieve bright blue shades.
• Leather Coloring: Used in the dyeing of leather goods, providing rich color with good penetration and uniformity.
• Paper Staining: Employed for coloring specialty papers, including decorative and security papers.
• Ink Formulation: A key component in the manufacture of certain inks, particularly for non-impact printing and specialty applications.
• Biological Staining: Used in histology and microscopy as a biological stain for tissue samples.
• Wood Staining: Applied for coloring wood and wood-based products to achieve decorative blue finishes.

Basic Information

Product Name	Acid Blue 83
CAS No.	6104-59-2
Molecular Formula	C45H44N3NaO7S2
Molecular Weight	825.96 g/mol
Synonyms	Acid Blue 83; C.I. 42660; Alizarine Brilliant Blue BS; Amido Naphthol Blue Black; Aniline Blue, water soluble; Benzyl Blue; China Blue; Cotton Blue; Methyl Blue; Niagara Blue; Soluble Blue; Water Blue
EINECS	228-058-2

Quality Control

Our Acid Blue 83 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Every lot is tested against rigorous internal specifications for color strength, shade, solubility, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing assay, physical properties, and conformance is provided with each shipment 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). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark blue to blue-black powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 85%
Color Strength	100 ± 5%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 1.0%

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