Description

Reactive Orange 12 is a highly reactive, water-soluble azo dye belonging to the vinyl sulfone class of reactive dyes. Its primary value lies in forming a strong covalent bond with cellulose fibers, resulting in exceptional wash and light fastness properties for brilliant orange shades. This dye is essential for manufacturers in the textile industry, particularly for dyeing and printing cotton, viscose, and other cellulosic fabrics where vibrant, durable coloration is required.

Application

• Exhaust dyeing of cotton yarns and knitted fabrics.
• Continuous pad-batch and pad-steam dyeing processes for woven cotton.
• Textile printing applications on cellulosic substrates.
• Dyeing of viscose rayon and other regenerated cellulose fibers.
• Used in combination with other reactive dyes to achieve a wide spectrum of shades.
• Application in the dyeing of hemp and linen fabrics.

Basic Information

Product Name	Reactive Orange 12
CAS No.	35642-64-9
Molecular Formula	C25H17ClN7Na3O10S3
Molecular Weight	813.06 g/mol
Synonyms	Reactive Orange VS-R; C.I. Reactive Orange 12; Remazol Brilliant Orange 3R; Levafix Orange E-3GA; Procion Orange H-ER; Drimarene Orange K-2R; Vinyl sulfone reactive dye; 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
EINECS	Contact for details

Quality Control

Our production of Reactive Orange 12 adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability in demanding textile applications. Each lot is tested for critical parameters including color strength, solubility, fixation rate, and fastness properties. Certificates of Analysis (COA) detailing purity, physical properties, and application test results are provided with every 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 product is hygroscopic (moisture-sensitive); the original container must be kept sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Orange to reddish-orange powder
Identification (IR)	Conforms to structure
Color Strength	≥ 98% (Standard)
Moisture Content	≤ 5.0%
Water Solubility (at 50°C)	≥ 100 g/L
pH (1% Solution)	6.0 - 8.0
Fixation Rate	≥ 70% (on cotton)
Fastness to Washing	≥ 4 (ISO 105-C03)
Fastness to Light	≥ 5 (ISO 105-B02)

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