Description

Sapphire Powder CAS NO 1317-82-4 is a high-purity, fine-particle aluminum oxide (Al2O3) material prized for its exceptional hardness, thermal stability, and chemical inertness. This engineered ceramic powder is a critical raw material for producing advanced components that demand superior wear resistance and performance under extreme conditions. It is essential for manufacturers in the abrasives, technical ceramics, and surface coating industries seeking to enhance product durability and precision.

Application

• Abrasive Manufacturing: A key component in the production of grinding wheels, sandpapers, and polishing compounds for metalworking, glass finishing, and precision optics.
• Advanced Technical Ceramics: Used as a primary material for sintering high-performance alumina ceramics, substrates, insulators, and wear-resistant parts.
• Protective & Thermal Spray Coatings: Applied via plasma or HVOF spraying to create hard, corrosion-resistant, and thermally insulating coatings on industrial components.
• Refractory & High-Temperature Linings: Incorporated into formulations for furnace linings, kiln furniture, and other materials that must withstand extreme heat.
• Reinforcement for Composites: Acts as a filler or reinforcement phase in polymer and metal matrix composites to improve mechanical strength and thermal properties.
• Lapping and Polishing: Utilized in precision lapping and polishing slurries for semiconductors, sapphire wafers, and other delicate substrates.

Basic Information

Product Name	Sapphire Powder
CAS No.	1317-82-4
Molecular Formula	Al2O3
Molecular Weight	101.96 g/mol
Synonyms	Aluminum Oxide Powder; Alumina Powder; Corundum Powder; α-Alumina; α-Al2O3; Abrasive Alumina; White Fused Alumina; Calcined Alumina
EINECS	215-691-6

Quality Control

Our Sapphire Powder is manufactured under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for purity, particle size distribution, and crystalline phase (α-alumina content). Certificates of Analysis (COA) detailing these parameters are provided to guarantee batch-to-batch consistency and performance reliability for your application.

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 the container tightly sealed to prevent moisture absorption and contamination from airborne particulates.

Specification

Item	Specification
Appearance	White, free-flowing powder
Assay (Al2O3)	≥ 99.5%
Alpha Phase Content	≥ 99%
Particle Size (D50)	Customizable (e.g., 1µm, 5µm, 10µm)
Loss on Ignition (LOI)	≤ 0.5%
SiO2	≤ 0.05%
Fe2O3	≤ 0.03%
Na2O	≤ 0.05%

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