Description

Reactive Yellow 14 is a high-purity, reactive azo dye belonging to the vinyl sulfone class, known for its bright yellow hue and excellent color fastness. Its primary value lies in its ability to form a covalent bond with cellulose fibers, resulting in vibrant, wash-fast coloration for textiles. This product is essential for industrial dyers and textile manufacturers seeking reliable and efficient dyeing solutions for cotton, viscose, and other cellulosic materials. Consistent quality and batch-to-batch uniformity are critical for achieving reproducible dyeing results in high-volume production.

Application

• Primary dyeing of cotton and viscose fibers and fabrics.
• Exhaust and continuous dyeing processes in textile mills.
• Production of dyed yarns for weaving and knitting applications.
• Used in the formulation of liquid dye preparations for automated dosing systems.
• Coloration of non-woven cellulosic substrates.
• Potential use in the dyeing of leather and paper, depending on grade and formulation.

Basic Information

Product Name	Reactive Yellow 14
CAS No.	18976-74-4
Molecular Formula	C26H18Cl2N8Na2O8S2
Molecular Weight	759.48 g/mol
Synonyms	Reactive Yellow 14; C.I. Reactive Yellow 14; Remazol Yellow RR; Levafix Yellow E-3R; Procion Yellow H-EXL; Drimarene Yellow K-2R; 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-sulfophenyl)azo]-, sodium salt (1:2)
EINECS	242-737-5

Quality Control

Our Reactive Yellow 14 is manufactured under a stringent quality management system to ensure it meets the high standards required for industrial textile dyeing. Every batch is tested for critical parameters including color strength, shade, solubility, and reactive group content to guarantee batch-to-batch consistency. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment.

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). This material is hygroscopic (moisture-sensitive); ensure the original packaging is sealed after use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	≥ 100 g/L (at 50°C)
pH (1% Solution)	6.0 - 8.0
Fixation Rate	≥ 70% (Standard Conditions)

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