Description

Granular Blue CAS NO 71431-29-3 is a high-performance, granular-form colorant widely utilized in industrial applications. This product is valued for its consistent color strength, excellent dispersion properties, and stability under various processing conditions. It serves as a critical component for manufacturers in the plastics, masterbatch, and synthetic fiber industries seeking reliable and uniform coloration.

Application

• Plastics and Polymer Coloring: Primary use for coloring polyethylene (PE), polypropylene (PP), polystyrene (PS), and other thermoplastic resins.
• Masterbatch Production: A key pigment for creating concentrated color masterbatches used in injection molding and extrusion.
• Synthetic Fibers: Employed in the spin-dyeing process for nylon, polyester, and polyolefin fibers to achieve vibrant, wash-fast colors.
• Engineering Plastics: Suitable for coloring high-performance engineering plastics where thermal stability is required.
• Films and Sheets: Used in the production of colored plastic films for packaging and agricultural applications.
• Non-Food Contact Articles: Applicable for coloring household items, containers, and industrial parts.

Basic Information

Product Name	Granular Blue CAS NO 71431-29-3
CAS No.	71431-29-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Pigment Blue 29; C.I. 77007; Ultramarine Blue, Synthetic; Ultramarine Blue Pigment; Sodium Aluminum Sulfosilicate; Lapis Lazuli, Synthetic; CI 77007; Azurite Blue (synthetic analog)
EINECS	275-476-2

Quality Control

Our Granular Blue is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for key parameters including color strength, hue, particle size distribution, and thermal stability to ensure batch-to-batch consistency and performance in your application. Certificates of Analysis (COA) documenting these specifications are available upon request.

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 container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Blue Granules
Color Strength	100% ± 5% (vs. Standard)
Hue	Conforms to Standard
Moisture Content	≤ 0.5%
Sieving Residue (45μm)	≤ 0.1%
Thermal Stability	≥ 300°C
Identification (IR)	Conforms

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