Description

Spinel-Group Minerals, Aluminum-Chromium-Iron-Magnesium are a class of complex inorganic oxides with the general formula AB₂O₄, where A and B are metal cations. These minerals are valued for their exceptional thermal stability, chemical inertness, and unique refractory properties, making them critical for high-performance industrial applications. They are essential materials for manufacturers in the refractory, ceramics, and advanced materials sectors seeking durable, high-temperature solutions.

Application

• Refractory Linings & Bricks: A primary component in high-alumina and chrome-based refractories for furnaces, kilns, and reactors in the steel, cement, and glass industries.
• Advanced Ceramics & Abrasives: Used in the formulation of wear-resistant ceramics, grinding media, and abrasive grains due to their hardness and thermal shock resistance.
• Pigments & Colorants: Serves as a base for high-temperature stable inorganic pigments, providing durable colors for ceramics, paints, and coatings.
• Catalyst Supports & Carriers: Utilized as a stable, high-surface-area support material for catalysts in petrochemical and environmental catalysis processes.
• Investment Casting: Employed in ceramic shell systems for precision metal casting, offering excellent dimensional stability at extreme temperatures.
• Electronics & Functional Fillers: Acts as a functional filler in composites to modify thermal, electrical, or mechanical properties.

Basic Information

Product Name	Spinel-Group Minerals, Aluminum-Chromium-Iron-Magnesium
CAS No.	70984-09-7
Molecular Formula	Variable (Mg,Fe)(Al,Cr,Fe)₂O₄
Molecular Weight	Variable (Contact for details)
Synonyms	Complex Spinel; Chrome Spinel; Ferrous Chromite; (Mg,Fe)(Al,Cr,Fe)₂O₄; Aluminium Chromium Iron Magnesium Oxide; Magnesium Iron Aluminium Chromium Oxide; Refractory Grade Spinel; Chrome-Magnesite
EINECS	Contact for details

Quality Control

Our Spinel-Group Minerals are produced and tested under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Key parameters such as chemical composition, particle size distribution, and phase purity are rigorously controlled. A Certificate of Analysis (COA) documenting all relevant specifications is provided with each 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 the container sealed to minimize exposure to atmospheric moisture and contaminants.

Specification

Item	Specification
Appearance	Fine Powder (Color varies)
Chemical Composition (Typical)	MgO, Al₂O₃, Cr₂O₃, Fe₂O₃ (Contact for ratios)
Phase Purity (XRD)	Predominantly Spinel Phase
Particle Size (D50)	Customizable (e.g., 1-50 µm)
Loss on Ignition (LOI)	< 1.0 %
Bulk Density	Variable (Contact for details)

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