Description

C.I. Reactive Black 17 is a high-performance, bifunctional reactive dye belonging to the azo chemical class, primarily used for dyeing and printing cellulosic fibers. Its key value lies in providing deep, rich black shades with excellent wash and light fastness properties, ensuring color durability in demanding applications. This product is essential for textile manufacturers, leather processors, and paper coating specialists seeking reliable and vibrant coloration. The compound is identified by CAS No. 12225-32-0.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, linen, and other cellulosic fabrics to achieve deep black shades.
• Textile Printing: Used in printing pastes for direct and discharge printing on natural fiber textiles.
• Leather Coloring: Imparts a uniform and fast black color to finished leather goods.
• Paper Coating: Employed in the production of specialty colored papers and boards.
• Ink Formulation: A component in the manufacture of certain types of industrial inks.
• Research & Development: Serves as a standard or intermediate in chemical synthesis and dye research laboratories.

Basic Information

Product Name	C.I. Reactive Black 17
CAS No.	12225-32-0
Molecular Formula	C26H21N5O19S6.4Na
Molecular Weight	Contact for details
Synonyms	Reactive Black 17; Reactive Black K-BG; Reactive Black KN-B; C.I. 18205; Remazol Black B; Levafix Black EB; Procion Black H-EXL; Dianix Black S-G; 1,3,6-Naphthalenetrisulfonic acid, 8-[[4-[[4-[(2,4-disulfophenyl)azo]-7-sulfo-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-, sodium salt
EINECS	Contact for details

Quality Control

Our production of C.I. Reactive Black 17 adheres to stringent quality management protocols. Every batch is tested to ensure consistent strength, shade, and reactivity, meeting the high standards required for industrial dyeing processes. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee traceability and compliance.

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	Black powder or granules
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 7.0%
Water Insoluble Matter	≤ 1.0%
pH (1% Solution)	5.5 - 7.5
Fixation Rate	≥ 70%
Fastness Properties (Typical)	Wash: 4-5, Light: 5-6

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