Description

Naphthalene Black CAS NO 67426-72-6 is a synthetic organic dye belonging to the azo dye class, valued for its deep, intense black coloration. It serves as a critical colorant and intermediate in various industrial processes where durable and consistent pigmentation is required. This product is essential for manufacturers in the textile, ink, and specialty coatings industries seeking reliable and high-performance dyes.

Application

• Textile Dyeing: Used for dyeing natural and synthetic fibers, including cotton, wool, and polyamide, to achieve deep black shades.
• Ink Formulation: Acts as a key pigment in the production of printing inks for packaging, publications, and security printing.
• Leather Finishing: Employed in the dyeing and finishing of leather goods to provide uniform and rich black color.
• Paper Coloring: Utilized in specialty paper manufacturing for tinting and surface coating applications.
• Plastics and Polymers: Incorporated as a colorant for plastics, resins, and masterbatches.
• Biological Staining: May be used in histological and cytological staining procedures in laboratory settings.

Basic Information

Product Name	Naphthalene Black
CAS No.	67426-72-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Black 1; Naphthalene Black 12B; C.I. 20470; Amido Black 10B; Naphthol Blue Black; Acid Blue Black; Aniline Blue Black; Acid Black 10B
EINECS	Contact for details

Quality Control

Our Naphthalene Black is produced under a rigorous quality management system to ensure batch-to-batch consistency and performance. Quality parameters including color strength, purity, solubility, and absence of heavy metals are strictly monitored. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications.

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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Dark blue-black to black powder
Identification (IR)	Conforms to standard
Color Strength	≥ 98% (vs. Standard)
Purity (HPLC)	≥ 95%
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Conforms
Heavy Metals (as Pb)	≤ 20 ppm

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