Pure Encapsulations Magnesium As Magnesium Oxide Good Dispersibility

Commonly Used In Steel Smelting Casting Furnace Lining Flame Equipment Magnesium Oxide (MgO)

Product Description

Magnesium oxide (MgO, CAS 1309-48-4) is an inorganic mineral oxide produced primarily through high-temperature calcination of magnesite (MgCO₃) or magnesium hydroxide (Mg(OH)₂). It is a white, hygroscopic solid mineral that occurs naturally as periclase, crystallizing in a cubic rock-salt structure with strong ionic bonding between Mg²⁺ and O²⁻ ions.

With a molecular weight of 40.30 g/mol, MgO delivers the highest elemental magnesium content (~60 wt%) among all magnesium sources. It is characterized by an exceptionally high melting point of 2852°C, a bulk density ranging from 0.1 to 0.5 g/mL depending on grade, and a saturated aqueous solution pH of 10.3, reflecting its strong alkaline nature.

Magnesium oxide finds critical applications spanning multiple industries, including high-temperature refractories, electrical insulators, dietary supplements, water treatment, agriculture (as fertilizer and feed additive), construction materials, and catalytic supports. Its commercial significance is driven by its acid-neutralizing capacity, thermal stability, and cost-effectiveness relative to organic magnesium salts and alternative basic oxides.

Parameters (Table)

Product Features

• High Purity (99.9%): Processed from premium raw materials to deliver a 99.9% MgO composition, ensuring superior performance, consistent quality, and reliable results in even the most demanding applications.
• Fine Particle Size (1–5 μm): Ultra-fine particles ranging from 1 to 5 microns enable fast, uniform dispersion, ensuring optimal performance and stable results across a wide range of applications.
• Excellent Thermal Stability: With a melting point of approximately 2800°C, the product maintains full stability under extreme high temperatures, making it ideal for demanding, high-heat environments.
• Chemical Inertness: As a 99.9% pure compound, MgO is chemically inert, resisting corrosion, acids, and alkalis while maintaining stability throughout chemical reactions.
• Good Electrical Insulation: Outstanding electrical insulation properties make it a dependable choice for electronic applications and devices requiring safe, reliable insulation.

Product Advantages

• High Performance in Extreme Conditions — The 99.9% purity ensures outstanding stability at high temperatures, delivering long-term durability in high-stress applications.
• Improved Material Properties — Fine particle size and high surface area enable better dispersion and interaction with other materials, enhancing overall material performance.
• Excellent Insulation — Exceptional electrical insulation makes it ideal for devices and systems that require high-performance insulation.
• Wide Applicability — Its purity and versatility suit a broad range of industries, from electronics and ceramics to chemical processing.
• Non-toxic and Environmentally Friendly — Safe to use and poses no risk to human health or the environment when handled properly.

Industry Sectors

Technical

• Production – calcination of magnesite or Mg(OH)₂ at 400–1000 °C (light grade) or >1000 °C (heavy grade).
• Grades – purity from 85 % (industrial) to 99.99 % (high‑purity 4N); light (bulk density ≤0.15 g/mL) and heavy (≥0.25 g/mL).
• Key parameters – MgO content, loss on ignition, particle size distribution, specific surface area, and acid‑neutralising capacity.
• Standards – compliant with USP, FCC, EP, and other national pharmacopoeias where applicable.

Principle (Mechanism of Action)

• Buffered alkalinity – MgO hydrolyses slowly in water to Mg(OH)₂, releasing OH⁻ ions but capping pH at ≈10.3, avoiding sudden over‑alkalisation.
• Thermal resistance – ionic crystal structure with very high melting point (2852 °C) and low thermal expansion, providing exceptional heat endurance.
• Adsorption & reactivity – porous surface (especially light grade) enables physical adsorption of impurities and chemical reaction with acidic species.
• Cementitious reaction – reacts with MgCl₂ or MgSO₄ to form strong, fire‑resistant oxychloride/sulphate cements.

Service

Packaging and Storage

• Packaging: The product is packed in moisture-proof and airtight bags or containers to prevent contamination and moisture absorption.
• Storage: The product should be stored in a cool, dry place, away from sunlight and sources of moisture to preserve its purity and prevent clumping. Sealed packaging is recommended to maintain the product’s integrity.

Precautions

• Avoid Inhalation: Prolonged exposure to dust may irritate the respiratory system. Appropriate dust control measures should be in place during handling and storage.
• Protective Gear: When handling the product, workers should wear appropriate protective equipment, including gloves, a dust mask, and eye protection.
• Proper Storage: Ensure that the product is stored in dry, well-ventilated areas, away from moisture, to maintain its purity.
• Waste Disposal: Dispose of waste material according to local environmental regulations to minimize environmental impact.