Description

Reactive Yellow 34 is a high-purity, reactive dye belonging to the vinyl sulfone class, widely recognized for its excellent color fastness and brilliant yellow hue. Its primary value lies in its ability to form a strong covalent bond with cellulose fibers, ensuring vibrant, wash-fast coloration in demanding textile applications. This product is essential for manufacturers in the textile industry seeking reliable and efficient dyeing solutions for cotton, viscose, and other cellulosic materials.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, viscose, and linen fabrics.
• Yarn Dyeing: Used for coloring cellulosic yarns in hank, package, and beam dyeing processes.
• Garment Dyeing: Suitable for dyeing finished cotton garments due to its good leveling and penetration properties.
• Printing Pastes: Formulated into printing pastes for textile printing applications on cellulosic substrates.
• Industrial Applications: Potential use in coloring paper and leather where reactive dye properties are required.

Basic Information

Product Name	Reactive Yellow 34
CAS No.	12226-58-3
Molecular Formula	C26H18ClN7Na3O11S3
Molecular Weight	872.09 g/mol
Synonyms	Reactive Yellow 3RS; C.I. Reactive Yellow 34; Reactive Golden Yellow 3RS; Vinylsulfone Reactive Yellow; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-, trisodium salt; Remazol Golden Yellow 3RS; Levafix Golden Yellow E-3RS; Drimarene Golden Yellow R-3R
EINECS	Contact for details

Quality Control

Our Reactive Yellow 34 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, solubility, and fixation rate. A 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 textile processing.

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 moisture to maintain product stability and shelf life.

Specification

Item	Specification
Appearance	Yellow to orange powder
Color Strength	Standard depth ± 5%
Moisture Content	≤ 7.0%
Water Insoluble Matter	≤ 0.2%
pH (1% Solution)	6.0 - 8.0
Dusting Property	Low dusting
Identification (IR)	Conforms to standard
Fixation Rate	≥ 70%

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