Description

C.I. Reactive Red 79 is a high-performance, water-soluble reactive dye belonging to the azo dye class. It is engineered for covalent bonding with cellulosic fibers, delivering excellent wash and light fastness properties. This product is essential for textile manufacturers and dye houses specializing in the coloration of cotton, viscose, and other natural fibers, where vibrant red shades with high durability are required.

Application

• Exhaust Dyeing of Cellulosic Fibers: Primary application for dyeing cotton, rayon, and linen in jet, winch, or beck dyeing machines.
• Continuous Dyeing Processes: Used in pad-batch and pad-steam operations for efficient, large-scale fabric production.
• Textile Printing: Suitable for printing inks to create sharp, durable red patterns on fabric.
• Leather Coloration: Applied in the dyeing of leather goods to achieve consistent red hues.
• Paper Staining: Used for specialty paper products requiring colorfast red pigmentation.
• Biomolecule Staining: Potential application in laboratory settings for staining biological materials.

Basic Information

Product Name	C.I. Reactive Red 79
CAS No.	61969-22-0
Molecular Formula	C31H19ClN7Na4O19S6
Molecular Weight	1136.36 g/mol
Synonyms	Reactive Red 79; Reactive Brilliant Red M-3BE; Reactive Red M-3BE; C.I. 14980; Reactive Red KE-3B; Levafix Red E-3B; Procion Red H-E3B; Remazol Red 3BS
EINECS	Contact for details

Quality Control

Our production of C.I. Reactive Red 79 adheres to stringent quality management protocols. Every batch is tested against key performance indicators such as color strength, fixation rate, and solubility to ensure consistency and reliability for industrial dyeing processes. Certificates of Analysis (COA) detailing purity, shade, and physical properties 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 the container is sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Reddish-brown powder
Color Strength	100 ± 3% (Standard)
Solubility in Water	≥ 100 g/L (at 50°C)
Moisture Content	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Fixation Rate	≥ 70%
Identification (IR)	Conforms to standard
Heavy Metals (as Pb)	≤ 50 ppm

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