Description

Reactive Red 240 is a high-performance, bifunctional reactive dye belonging to the azo chemical class, designed for exceptional color fastness and dye yield. This product is engineered to deliver brilliant and durable red shades on cellulosic fibers, making it a critical component for achieving consistent, high-quality coloration in demanding textile applications. It is primarily utilized by textile manufacturers and dye houses specializing in cotton, viscose, and other cellulose-based fabrics who require reliable, wash-fast, and light-fast red dyes for their production processes.

Application

• Exhaust dyeing of cotton and viscose yarns and fabrics.
• Continuous dyeing and pad-batch processes for cellulosic textiles.
• Production of dyed fabrics for apparel, home textiles (e.g., bed linens, towels), and industrial textiles.
• Used in formulations for dyeing cellulose fiber blends with polyester or other synthetics.
• Ideal for applications requiring high levels of wash fastness and light fastness.
• Suitable for use in modern, low-salt or salt-free reactive dyeing processes to meet environmental standards.

Basic Information

Product Name	Reactive Red 240
CAS No.	23354-53-2
Molecular Formula	C31H19ClN7Na4O19S6
Molecular Weight	1136.31 g/mol
Synonyms	Reactive Red HE-3B; C.I. Reactive Red 240; Reactive Red HE3B; Red HE3B; Remazol Red HE-3B; Levafix Red E-3B; Procion Red HE-3B; Sumifix Red HE-3B
EINECS	Contact for details

Quality Control

Our Reactive Red 240 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each production lot is tested against key parameters including color strength, shade, solubility, and fixation properties. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and application performance is available for every shipment 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 incompatible materials. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Reddish-brown powder
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 7.0%
Water Solubility	≥ 100 g/L (at 50°C)
pH (1% Solution)	5.5 - 7.5
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.