Description

Acid Black 180 is a high-performance, synthetic acid dye belonging to the azo chemical class, valued for its deep, intense black shade and excellent color fastness properties. It is a critical component for achieving durable and vibrant coloration on protein-based fibers, particularly in demanding industrial applications. This product is essential for manufacturers in the textile, leather, and paper industries seeking reliable and consistent black dyeing solutions. The compound is identified by CAS number 11103-91-6.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers, providing excellent wash and light fastness.
• Leather Finishing: Used for dyeing leather goods, offering deep penetration and uniform color for products like shoes, bags, and upholstery.
• Paper Coloration: Employed in specialty paper production for achieving deep black tones in decorative papers or packaging.
• Ink Formulation: A component in the manufacture of certain inks requiring a stable black pigment.
• Biomaterial Staining: Potential use in laboratory settings for histological staining of tissue samples.

Basic Information

Product Name	Acid Black 180
CAS No.	11103-91-6
Molecular Formula	C40H23N7Na4O13S4
Molecular Weight	1081.86 g/mol
Synonyms	Acid Black 180; C.I. 20470; Acid Black WAN; Black 2B; Nylon Fast Black 2B; Acid Leather Black 2B; Acid Black B; Azo Black 180
EINECS	Contact for details

Quality Control

Our Acid Black 180 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against stringent in-house specifications for critical parameters including color strength, shade, solubility, and impurity profile. While not typically a pharmaceutical-grade chemical, our quality commitment ensures it meets the high standards required for industrial dyeing processes. Certificates of Analysis (COA) are available upon request.

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 light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Black to dark bluish-black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 1.0%

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