Description

Acidblackats CAS NO 12217-17-3 is a high-performance, synthetic organic dye belonging to the acid dye class, valued for its strong affinity to protein fibers like wool, silk, and nylon. Its primary commercial value lies in providing deep, rich, and wash-fast black shades in textile dyeing and printing applications. This product is essential for manufacturers in the textile, leather finishing, and specialty paper industries seeking consistent color quality and batch-to-batch reliability.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide (nylon) fibers to achieve deep black and dark shades.
• Leather Finishing: Used in the coloration of leather goods, providing uniform and durable color penetration.
• Paper Staining: Employed for the production of specialty colored papers, including decorative and security papers.
• Ink Formulation: A key component in the manufacture of inks for ballpoint pens, stamp pads, and other writing instruments.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Polymer Coloring: Suitable for mass coloration of specific synthetic polymers where acid dye compatibility is required.

Basic Information

Product Name	Acidblackats
CAS No.	12217-17-3
Molecular Formula	C22H14N6Na2O9S2
Molecular Weight	616.49 g/mol
Synonyms	Acid Black 48; C.I. 65005; Acid Leather Black NB; Naphthalene Black 12B; Acid Black AT; Acid Black ATS; Acid Leather Black AT; Acid Black NB
EINECS	Contact for details

Quality Control

Our Acidblackats is manufactured under a strict quality management system to ensure product consistency and performance. Each batch is tested against key parameters including color strength, shade, solubility, and impurity profile to meet industry specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and performance metrics 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 product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Black to dark bluish-black powder
Identification (IR)	Conforms to standard
Assay (Dye Content)	≥ 95%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
Shade & Strength	Match to standard ± 5%

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