Description

Solvent Black 45 is a high-performance, oil-soluble diazo dye widely used for its deep, intense black coloration. This product matters for its excellent solubility in non-polar organic solvents and its strong tinting strength, which provides cost-effective and durable coloring. Industries that need it include plastics manufacturing, printing inks, wood stains, and the coloration of fuels and lubricants, where consistent, non-migratory color is essential.

Application

• Primary coloring agent for a wide range of plastics and polymers, including polystyrene, ABS, and polycarbonate.
• Key component in the formulation of high-quality printing inks, especially for flexographic and gravure applications.
• Manufacture of deep-penetrating wood stains and finishes for furniture and decorative applications.
• Coloration of fuels, lubricants, and greases for identification and branding purposes.
• Production of waxes and polishes to achieve a rich, black sheen.
• Dye for synthetic fibers during the melt-spinning process.
• Tinting of adhesives and sealants for industrial and construction use.

Basic Information

Product Name	Solvent Black 45
CAS No.	94765-62-5
Molecular Formula	C22H16N6O2
Molecular Weight	396.40 g/mol
Synonyms	Solvent Black B; C.I. Solvent Black 45; Oil Black B; Aizen Spilon Black BNH; Diazo Black B; Plast Black B; 1,3-Benzenediamine, 4,4'-[1,2-ethenediylbis(3-nitro-4,1-phenyleneazo)]bis-; 4,4'-[1,2-Ethenediylbis(3-nitro-4,1-phenyleneazo)]bis[1,3-benzenediamine]
EINECS	Contact for details

Quality Control

Our Solvent Black 45 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, solubility, and purity. A comprehensive Certificate of Analysis (COA) documenting these results is provided with each shipment and is available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Black powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Solubility (in Toluene)	Complete, clear solution
Particle Size (Passing 80 mesh)	≥ 95%

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