Description

C.I. Acid Blue 205 is a synthetic acid dye belonging to the anthraquinone chemical class, valued for its bright and stable blue hue. It is a critical component for achieving high-quality, wash-fast coloration on protein-based fibers like wool, silk, and nylon. This dye is essential for manufacturers in the textile, leather, and specialty paper industries seeking reliable and vibrant blue shades.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide (nylon) fibers, offering good leveling and wash-fastness properties.
• Leather Finishing: Used for coloring leather goods, providing rich and uniform blue tones with good penetration.
• Paper Staining: Employed in the production of specialty papers, decorative tissues, and security papers requiring colorfastness.
• Ink Formulation: A colorant for certain types of inks, particularly where acid-dye compatibility is required.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	C.I. Acid Blue 205
CAS No.	12238-92-5
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.66 g/mol
Synonyms	Acid Blue 205; C.I. 62155; Sodium 1-amino-4-[(4-aminophenyl)amino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate; Acid Leather Blue RL; Nylosan Blue N-BLN; Telon Blue ANL; Supranol Blue BLW; Anthraquinone Blue 205
EINECS	Contact for details

Quality Control

Our C.I. Acid Blue 205 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including spectrophotometric analysis for strength and shade, HPLC for purity profile, and tests for insolubles and heavy metals. Certificates of Analysis (COA) confirming compliance with industry specifications are available upon request.

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 powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Insolubles	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 50 ppm

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