Description

C.I. Reactive Blue 1 is a high-purity, anthraquinone-based reactive dye widely used for its excellent color fastness and vibrant blue hue. This product is essential for achieving durable and wash-resistant coloration on cellulosic fibers like cotton and viscose. It is a critical raw material for textile manufacturers, dye houses, and industrial chemical suppliers serving the global fabric and garment industry.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, linen, and other cellulosic fibers.
• Viscose Rayon Coloration: Used to impart a bright, reactive blue shade to viscose fabrics and yarns.
• Garment Manufacturing: Employed in the production of blue-colored apparel, home textiles, and denim with high wash fastness.
• Industrial Fabric Production: Suitable for dyeing canvas, toweling, and other industrial textiles requiring color durability.
• Research & Development: Serves as a reference standard or key intermediate in chemical and dye synthesis research.
• Specialty Paper Coloring: Potential application for coloring certain types of paper where reactive properties are beneficial.

Basic Information

Product Name	C.I. Reactive Blue 1
CAS No.	12225-34-2
Molecular Formula	C₂₂H₁₆ClN₇O₈S₂·2Na
Molecular Weight	681.44 g/mol (as disodium salt)
Synonyms	Reactive Blue 1; Reactive Blue H-EGN; Remazol Brilliant Blue R; Procion Blue H-EGN; Levafix Blue RA; Cibacron Blue F-R; Drimarene Blue R-BL; Anthraquinone Blue, Reactive; 1-Amino-4-[3-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-4-sulfophenylamino]anthraquinone-2-sulfonic acid disodium salt
EINECS	235-439-9

Quality Control

Our C.I. Reactive Blue 1 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, solubility, and reactive group content. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and application performance is provided with every shipment to guarantee it meets the specifications required for industrial dyeing processes.

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	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	≥ 100% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Solubility	≥ 50 g/L (at 50°C)
pH (1% Solution)	6.0 - 8.0
Dusting Property	Low

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