Description

C.I. Reactive Blue 18 is a high-purity, anthraquinone-based reactive dye used for coloring cellulosic fibers. This product is valued for its excellent wash and light fastness properties, providing vibrant and durable blue shades. It is primarily required by textile manufacturers for dyeing and printing cotton, viscose, and other natural fibers, as well as for research and development in specialty colorant applications.

Application

• Primary application in the exhaust dyeing of cotton and viscose fabrics and yarns.
• Used in the continuous dyeing and printing processes for cellulosic textiles.
• Suitable for laboratory use in research and development of new dye formulations and processes.
• Employed in the coloration of paper and leather where reactive dye properties are beneficial.
• Can be used for educational purposes in teaching textile chemistry and dye application techniques.

Basic Information

Product Name	C.I. Reactive Blue 18
CAS No.	12217-99-1
Molecular Formula	C22H16ClN7O11S3·xNa
Molecular Weight	Contact for details
Synonyms	Reactive Blue 18; Reactive Blue H-EGN; Remazol Brilliant Blue R; Drimarene Brilliant Blue R-BL; Levafix Brilliant Blue E-BRA; Procion Brilliant Blue H-EGN; Cibacron Brilliant Blue F-BR; Anthraquinone Blue, Reactive; 1-Amino-4-[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfophenyl]amino-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our C.I. Reactive Blue 18 is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including color strength, shade, solubility, and reactive group content to ensure batch-to-batch consistency and performance in your application. Certificates of Analysis (COA) detailing purity and 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. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Color Strength	Standard ± 3%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	Matches Standard
Fastness Properties	Contact for details

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