Description

Acid Black 107 is a high-performance, synthetic acid dye belonging to the azo chemical class, valued for its deep, rich black shade and excellent fastness properties. This dye is engineered to deliver superior color yield and consistency, which is critical for achieving uniform and durable coloration in demanding industrial applications. It is primarily required by manufacturers in the textile, leather, and paper industries seeking a reliable black dye for nylon, wool, silk, and other polyamide fibers.

Application

• Primary dyeing of nylon fibers, including apparel, automotive textiles, and carpets.
• Coloration of wool and silk fabrics, providing a deep black with good wash and light fastness.
• Leather dyeing for footwear, upholstery, and accessories.
• Paper coloration for specialty papers requiring a stable black hue.
• Ink formulation for specific printing applications.
• As a component in the production of pre-metallized dyes.

Basic Information

Product Name	Acid Black 107
CAS No.	12218-96-1
Molecular Formula	C22H14N6Na2O9S2
Molecular Weight	616.48 g/mol
Synonyms	Acid Black WAN; C.I. Acid Black 107; Acid Black 107 (C.I. 15711); Sodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-7-nitro-1-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-, disodium salt; Black WAN; Acid Leather Black WAN; Nylon Black WAN
EINECS	Contact for details

Quality Control

Our Acid Black 107 is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for key parameters including color strength, shade, solubility, and impurity profile to ensure it meets the high standards required for industrial dyeing. Certificates of Analysis (COA) documenting purity, physical properties, and performance characteristics are available upon request 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.

Specification

Item	Specification
Appearance	Black powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0

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