Description

C.I.Acid Black 173 is a high-performance synthetic dye belonging to the acid dye class, identified by CAS No. 61967-86-0. It is valued for its strong affinity to protein fibers like wool, silk, and nylon, providing deep, durable black shades with excellent wash and light fastness properties. This product is essential for manufacturers in the textile, leather, and specialty paper industries seeking reliable and consistent coloration for their premium products.

Application

• Primary dyeing of wool, silk, and polyamide (nylon) fibers in the textile industry.
• Leather finishing and dyeing for apparel, upholstery, and automotive interiors.
• Coloration of specialty papers, including decorative and security papers.
• Used in the formulation of inks for specific marking and printing applications.
• Potential use as a stain or colorant in biological and histological research applications.
• Dyeing of feathers and other protein-based materials.

Basic Information

Product Name	C.I.Acid Black 173
CAS No.	61967-86-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Black 173; C.I. 15711; Acid Leather Black 2G; Nylosan Black N-BL; Telon Black BGL; Erionyl Black BGL; Supranol Black BGL; Acid Black WAN
EINECS	Contact for details

Quality Control

Our production of C.I.Acid Black 173 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, solubility, and fastness properties. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee compliance with your technical requirements.

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 container must be kept tightly closed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Black powder or granules
Color Strength	Standard depth ± 5%
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Fastness to Washing	≥ 4-5 (ISO 105-C03)
Fastness to Light	≥ 5 (ISO 105-B02)
Ash Content	≤ 1.0%

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