Description

Vat Black 9 is a high-performance vat dye belonging to the anthraquinone chemical class, known for its exceptional color fastness and deep, rich black shade. This product is engineered to deliver superior performance in demanding dyeing applications where durability and resistance to environmental factors are critical. It is an essential pigment for industrial manufacturers in the textile, leather, and specialty coatings sectors seeking reliable and consistent coloration.

Application

• Textile Dyeing: Primarily used for dyeing cotton, wool, and viscose fibers, providing excellent wash, light, and chlorine fastness.
• Leather Finishing: Employed in the dyeing of high-quality leather goods, including apparel, footwear, and upholstery, for a durable black finish.
• Ink Manufacturing: Serves as a key colorant in the production of high-stability printing inks for packaging and security applications.
• Plastics and Polymers: Used for mass coloration of plastics where high thermal stability and lightfastness are required.
• Paper Coloration: Applied in specialty paper production for deep, permanent black shades.
• Pigment Preparation: Acts as a base for preparing high-grade pigment preparations and dispersions used in industrial coatings.

Basic Information

Product Name	Vat Black 9
CAS No.	1328-25-2
Molecular Formula	C34H14N2O6
Molecular Weight	546.49 g/mol
Synonyms	Vat Black 9; C.I. 65225; C.I. Vat Black 9; Indanthren Black B; Caledon Black B; Cibanone Black B; Durindone Black B; Anthra Black B; 16,17-Dihydrodinaphtho[2,3-a:2',3'-i]naphth[2',3':6,7]indolo[2,3-c]carbazole-5,10,15,17,22,24-hexaone
EINECS	215-540-4

Quality Control

Our Vat Black 9 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. Quality is verified through comprehensive analytical testing, including spectrophotometric analysis, particle size distribution, and fastness property assessments. A Certificate of Analysis (COA) detailing purity, strength, and physical 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 and incompatible materials. The container must be kept tightly closed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Dark Blue-Black Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Particle Size (Residue on 80 mesh)	≤ 5.0%
Dyeing Fastness (Cotton)	Wash Fastness: 4-5 Light Fastness: 6-7 Rubbing Fastness: 4-5
Solubility	Insoluble in water; Soluble in concentrated sulfuric acid (with specific color change)

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