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Products·Aug 3, 2026
Comprehensive guide to TDHX Groups magnesium products including High Purity Magnesia, Fused Magnesia, Magnesium Oxide (MgO), Light-Burned Magnesia, and Magnesium Sulfate with specifications and industrial applications.
Introduction to Magnesium Products
Magnesium compounds are essential industrial minerals used across a wide range of industries including refractories, agriculture, chemicals, construction, and environmental protection. As a leading manufacturer of mineral powders, TDHX Groups produces a comprehensive range of magnesium products that meet stringent international quality standards. This guide covers our five core magnesium products and their industrial applications.
1. High Purity Magnesia
High purity magnesia is produced from carefully selected raw materials through advanced processing techniques to achieve exceptional purity levels. Our high purity magnesia features MgO content of 98% or higher, making it suitable for the most demanding industrial applications.
Key Specifications
- MgO Content: ≥ 98%
- CaO: ≤ 1.0%
- SiO₂: ≤ 0.5%
- Fe₂O₃: ≤ 0.1%
- Bulk Density: ≥ 3.4 g/cm³
Applications
High purity magnesia is widely used in advanced refractory materials for steelmaking, non-ferrous metal smelting, and glass manufacturing. It is also used in the production of high-grade magnesium chemicals, electronic ceramics, and specialized coatings where exceptional purity is required.
2. Fused Magnesia
Fused magnesia (also known as electro-fused magnesia) is produced by melting high-grade magnesite at temperatures exceeding 2,000°C in electric arc furnaces. This process creates large, dense crystals with excellent thermal stability and corrosion resistance.
Key Specifications
- MgO Content: ≥ 97%
- Crystal Size: 200-2000 μm
- Bulk Density: ≥ 3.55 g/cm³
- Apparent Porosity: ≤ 3%
Applications
Fused magnesia is the preferred material for manufacturing high-performance refractory bricks used in steel ladles, electric arc furnaces, and cement kilns. Its large crystal structure provides superior resistance to slag penetration and thermal shock, extending the service life of refractory linings in extreme operating conditions.
3. Magnesium Oxide (MgO)
Magnesium oxide is a versatile compound produced through the calcination of magnesium carbonate or magnesium hydroxide. TDHX Groups offers MgO in various grades tailored to specific industry requirements, from reactive MgO for chemical processes to dead-burned MgO for refractory applications.
Key Specifications
- MgO Content: 85-97% (varies by grade)
- Particle Size: 1-10 μm (reactive grade) to 100-300 μm (refractory grade)
- Specific Surface Area: 5-150 m²/g
- Loss on Ignition (LOI): ≤ 2%
Applications
Magnesium oxide has diverse applications including: refractory materials for high-temperature furnaces, environmental treatment for wastewater neutralization and flue gas desulfurization, rubber and plastic industry as a filler and acid scavenger, agricultural applications as a soil conditioner and animal feed supplement, and construction materials including magnesium oxychloride cement (Sorel cement).
4. Light-Burned Magnesia
Light-burned magnesia (also called caustic calcined magnesia or CCM) is produced by calcining magnesite at temperatures between 700-1,000°C. This moderate calcination process preserves the reactivity of the material while driving off carbon dioxide, resulting in a highly reactive magnesium oxide product.
Key Specifications
- MgO Content: ≥ 90%
- LOI: ≤ 3%
- Reactivity (citric acid test): 10-30 seconds
- Particle Size: 45-150 μm
Applications
Light-burned magnesia is primarily used in environmental applications such as wastewater treatment and flue gas desulfurization due to its high reactivity. It is also used in the production of magnesium chemicals, as a filler in rubber and plastics, in animal nutrition as a magnesium supplement, and in the manufacturing of magnesium boards and construction panels.
5. Magnesium Sulfate
Magnesium sulfate (MgSO₄), commonly known as Epsom salt in its hydrated form, is produced through the reaction of magnesium oxide or magnesium hydroxide with sulfuric acid. TDHX Groups produces magnesium sulfate in both anhydrous and heptahydrate forms to meet diverse industry requirements.
Key Specifications
- MgSO₄ Content: ≥ 99% (anhydrous) / ≥ 98% (heptahydrate)
- Appearance: White crystalline powder
- Solubility: Highly soluble in water
- pH (1% solution): 5.5-7.0
Applications
Magnesium sulfate is widely used in agriculture as a fertilizer to correct magnesium deficiency in soils and crops. In the pharmaceutical industry, it serves as an anticonvulsant and electrolyte replenisher. Other applications include textile processing as a mordant, water treatment for hardness adjustment, food industry as a brewing salt and nutritional supplement, and chemical manufacturing as a raw material for other magnesium compounds.
Why Choose TDHX Groups for Magnesium Products
With over 8 years of production experience and 6 advanced processing units, TDHX Groups delivers consistent quality across our entire magnesium product range. Our state-of-the-art equipment includes Raymond mills, ball mills, and jet mills that enable precise particle size control from 200 to 3,000 mesh. Every batch undergoes rigorous quality testing for purity, particle size distribution, and chemical composition before shipment.
We serve customers in over 30 countries across Southeast Asia, East Asia, and beyond, providing tailored solutions for diverse industrial applications. Our technical team works closely with clients to recommend the optimal magnesium product and specification for their specific requirements.
Request a Quote
Interested in our magnesium products? Contact our sales team for detailed specifications, pricing, and samples. We offer flexible packaging options including 25kg bags, 500kg jumbo bags, and bulk shipments to meet your operational needs.
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