Description

Fast Sulphon Black F is a high-performance, water-soluble anionic dye belonging to the sulphonated azo dye class. This product is engineered to deliver consistent, deep black shades with excellent fastness properties, making it a critical component for demanding coloration processes. It is primarily utilized in the textile, leather, and paper industries where durable and vibrant black coloration is required.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve deep, level black shades with good wash and light fastness.
• Leather Finishing: Used in the dyeing of leather goods, providing uniform and penetrating color for products like footwear, bags, and upholstery.
• Paper Coloration: Effective for the surface coloring and tinting of specialty papers, including decorative and packaging papers.
• Ink Formulation: Serves as a colorant in the manufacture of inks for various printing applications.
• Biological Staining: Employed in specific histological and microbiological staining protocols as a diagnostic dye.
• Polymer Staining: Used for contrast enhancement and identification in certain polymer and material science applications.

Basic Information

Product Name	Fast Sulphon Black F
CAS No.	3682-47-1
Molecular Formula	C22H14N6Na2O9S2
Molecular Weight	616.49 g/mol
Synonyms	Acid Black 1; C.I. 20470; Naphthalene Black 12B; Sulphon Black; Wool Black 6BN; Fast Sulphon Black; Amido Black 10B; Acid Leather Black NB
EINECS	222-968-4

Quality Control

Every batch of Fast Sulphon Black F is manufactured and tested under a stringent quality management system. We ensure compliance with relevant industry standards for dye purity and performance characteristics. A comprehensive Certificate of Analysis (COA), detailing parameters such as color strength, shade, solubility, and impurity profile, is provided with each shipment to guarantee consistent quality and batch-to-batch reproducibility.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture which may affect performance.

Specification

Item	Specification
Appearance	Black to Bluish-Black Powder
Identification (IR)	Conforms to Standard
Assay (Color Strength)	≥ 95%
Moisture Content	≤ 5.0%
Water Solubility	Clear Solution
Ash Content	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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