Description

Vulcanosine Red 5B is a synthetic organic pigment belonging to the azo class, known for its vibrant and durable red hue. This high-performance colorant is valued for its excellent tinting strength, lightfastness, and chemical stability in various matrices. It is a critical raw material for manufacturers in the coatings, plastics, and printing ink industries seeking consistent, high-quality coloration. The compound is supplied under the identifier CAS NO 1325-22-0.

Application

Vulcanosine Red 5B is a versatile pigment employed across multiple industrial sectors where color consistency and durability are paramount.

• Industrial Coatings & Paints: Used in automotive, architectural, and industrial maintenance paints for its weather resistance and color stability.
• Plastics & Masterbatch Coloring: Imparts a stable red color to polymers like PVC, polyolefins, and engineering plastics during compounding and molding.
• Printing Inks: A key component in solvent-based, water-based, and UV-curable inks for packaging, publication, and specialty printing.
• Textile Pigment Printing: Applied in the coloration of fabrics and non-wovens where a specific red shade is required.
• Colored Concrete & Construction Materials: Used to pigment concrete blocks, paving stones, and mortars for decorative and safety-marking purposes.
• Artists' Colors & Specialty Pigments: Incorporated into high-grade artists' paints, chalks, and crayons.

Basic Information

Product Name	Vulcanosine Red 5B
CAS No.	1325-22-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Pigment Red 5B; C.I. Pigment Red 5B; Vulcanosine Red; Azo Pigment Red 5B; Vulcan Fast Red 5B; Vulcanosine Red B; Vulcan Red 5B; 1325-22-0
EINECS	Contact for details

Quality Control

Our Vulcanosine Red 5B is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality parameters such as color strength, hue, particle size distribution, and chemical purity are rigorously tested against established internal specifications. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee compliance with your technical requirements.

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. For long-term storage, ensure the original packaging remains sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	Standard (100±5%)
Hue	Compared to Standard
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size (D50)	≤ 5.0 μm
Oil Absorption	40 - 60 g/100g

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