Description

C.I. Condense Sulfur Blue 1 is a synthetic organic dye belonging to the sulfur dye class, valued for its deep blue color and good fastness properties. This compound is essential for achieving durable and economical coloration on cellulosic fibers like cotton and viscose. It is a critical material for manufacturers in the textile dyeing and printing industries seeking robust, cost-effective colorants.

Application

This sulfur dye is primarily utilized in the following industrial applications:

• Textile Dyeing: Exhaust dyeing of cotton, viscose, and other cellulosic fabrics to produce deep blue shades.
• Textile Printing: Used in printing pastes for direct and discharge printing on natural fiber fabrics.
• Leather Coloring: Application in dyeing leather goods where good penetration and fastness are required.
• Paper Staining: Coloring of paper products, including specialty papers and packaging materials.
• Industrial Colorant: As a colorant for non-textile materials such as wood stains or agricultural products.

Basic Information

Product Name	C.I. Condense Sulfur Blue 1
CAS No.	12224-48-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Sulfur Blue 1; C.I. 53440; Condense Sulfur Blue 1; Sulfur Blue BN; Kayaku Sulfur Blue BN; Sulphur Blue 1; Mitsui Sulphur Blue BN; Atlantic Sulphur Blue BN; D&C Blue No. 9 (historical); C.I. Leuco Sulphur Blue 1
EINECS	Contact for details

Quality Control

Our production of C.I. Condense Sulfur Blue 1 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, solubility, and fastness properties. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance processes.

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.

Specification

Item	Specification
Appearance	Dark Blue to Bluish-Black Powder
Color Strength	Standard Depth (100% ± 5%)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Solubility	Partially Soluble (Reduced Form)
Particle Size	Passes through specified mesh
Fastness Properties	To Light, Washing, Rubbing (Per ISO/AATCC Methods)

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