Description

Visco Sky Blue G is a specialized synthetic dye belonging to the anthraquinone class, identified by CAS No. 61724-71-8. This high-purity colorant is valued for its vibrant blue hue and excellent performance in demanding industrial applications. It is primarily utilized by manufacturers in the textile, paper, and specialty coatings industries seeking consistent, high-quality coloration.

Application

• Textile Dyeing: Used for dyeing and printing on viscose, cotton, and other cellulosic fibers, offering good wash and light fastness.
• Paper Coloring: Employed in the production of colored papers, tissues, and specialty packaging materials.
• Ink Manufacturing: Serves as a key pigment for producing inks used in flexographic, gravure, and other printing processes.
• Leather Finishing: Applied in the dyeing of leather goods to achieve uniform and durable blue shades.
• Specialty Coatings: Incorporated into coatings and paints where specific color standards are required.
• Biological Staining: May be used in histological and microbiological staining procedures as a contrast agent.

Basic Information

Product Name	Visco Sky Blue G
CAS No.	61724-71-8
Molecular Formula	C32H28N4Na2O8S2
Molecular Weight	730.76 g/mol
Synonyms	Acid Blue 25; C.I. 62055; Sky Blue G; Alizarine Sky Blue G; Anthraquinone Blue G; Sodium 1-amino-4-(cyclohexylamino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate; Visco Sky Blue G
EINECS	262-953-1

Quality Control

Our Visco Sky Blue G is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, purity, and solubility. Certificates of Analysis (COA) detailing key parameters are provided to guarantee batch-to-batch consistency and compliance with relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Blue to dark blue powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%

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