Description

Aluminum Oxide (Al2O3), Chromium-Doped is a specialized inorganic material where chromium ions are incorporated into the alumina crystal lattice, imparting unique optical and catalytic properties. This engineered compound is valued for its enhanced performance in applications requiring specific spectral characteristics or surface reactivity. It is a critical material for manufacturers in the laser, advanced ceramics, and catalyst development sectors seeking high-purity, doped ceramic precursors.

Application

• Solid-State Laser Crystals: As a key dopant in ruby (Cr:Al2O3) and other tunable laser crystals for medical, military, and industrial laser systems.
• Advanced Ceramics & Abrasives: Production of high-performance, wear-resistant ceramics and specialized abrasive grains where chromium doping improves toughness.
• Heterogeneous Catalysis: Used as a catalyst or catalyst support in dehydrogenation and selective oxidation processes in petrochemical refining.
• Optical Coatings & Pigments: A component in thin-film coatings and inorganic pigments, leveraging its stable color and optical properties.
• Wear-Resistant Coatings: Applied via thermal spray techniques to create protective, chromium-enhanced alumina coatings on industrial components.
• Research & Development: Serves as a model material in academic and industrial R&D for studying doped semiconductor and ceramic behaviors.

Basic Information

Product Name	Aluminum Oxide (Al2O3), Chromium-Doped
CAS No.	99328-47-9
Molecular Formula	Al2O3 (Cr-doped)
Molecular Weight	101.96 g/mol (base Al2O3)
Synonyms	Chromium-doped Alumina; Chromia-Alumina; Cr:Al2O3; Ruby Powder (synthetic); Aluminum Oxide doped with Chromium; Chromium(III)-doped Aluminum Oxide; Corundum, chromium-doped; Alumina, chromium-containing
EINECS	Contact for details

Quality Control

Our Chromium-Doped Aluminum Oxide is produced under stringent quality management systems. Each batch undergoes rigorous analysis to ensure consistent dopant concentration, phase purity (α-Al2O3), and controlled particle size distribution. Quality parameters are verified via techniques including X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICP-OES), and laser diffraction. Certificates of Analysis (COA) detailing lot-specific results are provided with every shipment.

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 to minimize exposure to atmospheric moisture and contaminants. Separate from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Pink to red powder
Identification (XRD)	Conforms to α-Al2O3 pattern
Assay (Al2O3)	≥ 98.0 %
Chromium (Cr) Content	0.1 - 5.0 % (customizable)
Loss on Ignition (LOI)	≤ 2.0 %
Particle Size (D50)	1 - 50 µm (customizable)
Specific Surface Area (BET)	1 - 20 m²/g
Heavy Metals (as Pb)	≤ 20 ppm

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