Description

C.I.Acid Black 153 is a high-performance, synthetic acid dye belonging to the azo chemical class. It is valued for its excellent color strength, good lightfastness, and strong affinity for protein fibers like wool, silk, and nylon. This dye is essential for manufacturers in the textile and leather industries seeking deep, durable black shades. Its consistent quality ensures reliable batch-to-batch performance for industrial dyeing and printing processes.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve deep black and dark grey shades.
• Leather Finishing: Used in the dyeing of leather goods, providing rich, uniform color for apparel, footwear, and upholstery.
• Paper Staining: Employed for the coloration of specialty papers where acid-fast properties are required.
• Ink Formulation: A component in the manufacture of certain inks for non-impact printing or specialty marking.
• Biomaterial Staining: Potential use in laboratory settings for histological staining of protein-based biological tissues.

Basic Information

Product Name	C.I.Acid Black 153
CAS No.	12234-52-5
Molecular Formula	C22H14N6Na2O9S2
Molecular Weight	616.49 g/mol
Synonyms	Acid Black 153; C.I. 15711; Acid Leather Black BR; Acid Black BR; Nylosan Black N-BL; Telon Black BGL; Lanasyn Black S-BL; Dermacid Black 2B
EINECS	Contact for details

Quality Control

Our production of C.I.Acid Black 153 adheres to stringent quality management protocols to ensure product consistency and performance. Every batch is tested against key parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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 to dark brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Shade	Conforms to standard pattern
Lightfastness	Good to Very Good

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