Description

Reactive Blue 40 is a high-purity, reactive anthraquinone dye used for coloring cellulosic fibers. This product matters for its excellent wash and light fastness properties, providing vibrant and durable blue shades in textile applications. It is primarily needed by manufacturers in the textile dyeing and printing industries for cotton, viscose, and other natural fibers. Our supply of Reactive Blue 40 CAS NO 12225-54-6 ensures consistent quality and reliable performance for industrial-scale production.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton and viscose fabrics.
• Textile Printing: Used in printing pastes for creating sharp, wash-fast blue designs on cellulosic materials.
• Leather Coloring: Imparts color to leather goods where reactive dye properties are beneficial.
• Paper Staining: Employed for coloring specialty papers requiring good water fastness.
• Research & Development: Serves as a reference standard or intermediate in chemical synthesis and dye research.
• Industrial Colorant: Potential use in coloring other hydroxyl-group-containing materials.

Basic Information

Product Name	Reactive Blue 40
CAS No.	12225-54-6
Molecular Formula	C29H19ClN7O11S3
Molecular Weight	804.12 g/mol
Synonyms	Reactive Blue KN-R; C.I. Reactive Blue 40; Remazol Brilliant Blue R; Levafix Brilliant Blue E-BRA; Procion Brilliant Blue H-EG; Drimarene Brilliant Blue K-2RL; Anthraquinone blue reactive dye; 1-Amino-4-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid
EINECS	Contact for details

Quality Control

Our Reactive Blue 40 is manufactured under a stringent quality management system. Each batch undergoes rigorous testing for critical parameters including color strength, shade, solubility, and reactive group content to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, physical properties, and performance characteristics are available upon request 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 and excessive heat. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Blue Powder
Identification (IR)	Conforms
Color Strength	≥ 98% (Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	Conforms to Standard
Fastness Properties	Contact for details

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