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Magnesium Oxide Pure
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Description
Magnesium Oxide, Pure
Other Names: Magnesia, High-purity magnesium oxide, Calcined magnesia (pure grade)
CAS Number: 1309-48-4
Sum Formula: MgO
Molar Mass: 40.30 g/mol
Appearance: White, odorless, fine crystalline powder
Pure magnesium oxide is a high-purity grade of MgO, typically ≥99% purity, characterized by minimal contamination with other metals or silicates. It exhibits excellent thermal stability, high melting point, and strong basicity, making it ideal for demanding industrial, chemical, and laboratory applications.
Chemical and Physical Properties
Purity: ≥99% (high-purity grade)
Density: 3.58 g/cm³
Melting Point: 2852°C
Boiling Point: 3600°C
Solubility in Water: Slightly soluble (~0.0086 g/100 mL at 30°C), reacts slowly to form magnesium hydroxide
Solubility in Other Solvents: Insoluble in alcohol; soluble in dilute acids
Odor: Odorless
Applications
Refractories: Used in high-temperature furnaces and kilns as a refractory lining material.
Laboratory Use: High-purity base in chemical synthesis and sample preparation.
Electronics: Applied in ceramics, dielectric materials, and insulating components.
Chemical Processing: Neutralization of acidic waste streams and as a catalyst support.
Optics and Materials Science: Employed in the fabrication of optical ceramics and polishing materials.
Safety
Not Classified
Handling and Storage
Storage Conditions: Store in a tightly closed container in a cool, dry, and well-ventilated location. Protect from moisture, acids, and humidity.
Handling Precautions: Avoid generation of dust. Use personal protective equipment (PPE) and ensure adequate ventilation.