Description

Alumina CAS NO 1333-84-2 is a versatile inorganic compound, primarily aluminum oxide, known for its high hardness, thermal stability, and chemical inertness. It serves as a critical raw material and functional additive across numerous high-value industrial sectors. Key industries that rely on this material include ceramics, refractories, polishing, catalysis, and advanced material synthesis.

Application

• Ceramics & Refractories: Primary component in the production of high-alumina ceramics, kiln furniture, and linings for high-temperature furnaces.
• Abrasives & Polishing: Used in the manufacture of grinding wheels, sandpapers, and as a precision polishing agent for metals, glass, and semiconductors.
• Catalyst & Catalyst Support: Acts as a catalyst in various chemical processes (e.g., Claus process) and as a high-surface-area support for other catalytic agents.
• Adsorbents & Desiccants: Utilized for drying gases and liquids, and as an adsorbent in chromatography due to its controlled pore structure.
• Fillers & Reinforcements: Enhances mechanical properties, thermal conductivity, and electrical insulation in plastics, composites, and coatings.
• Advanced Materials: Precursor for synthetic sapphire, transparent ceramics, and alumina fibers used in aerospace and defense applications.

Basic Information

Product Name	Alumina
CAS No.	1333-84-2
Molecular Formula	Al2O3
Molecular Weight	101.96 g/mol
Synonyms	Aluminum Oxide; Alumina, Activated; Aluminium Oxide; Corundum; α-Alumina; γ-Alumina; Aloxite; Abradant Alumina
EINECS	215-691-6

Quality Control

Our Alumina is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and performance. We offer various grades, including industrial, technical, and high-purity forms, with specifications tailored to your application. A comprehensive Certificate of Analysis (COA) detailing purity, particle size distribution, and loss on ignition is provided with each shipment to guarantee compliance with your 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). This material is hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent absorption of atmospheric moisture, which can affect flow properties and performance.

Specification

Item	Specification
Appearance	White powder or granules
Assay (Al2O3)	≥ 99.0%
Loss on Ignition (LOI)	≤ 1.0%
Particle Size (D50)	Customizable (e.g., 1-100 µm)
Specific Surface Area (BET)	Customizable (e.g., 1-300 m²/g)
Alpha Phase Content	Reported
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.