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Purity 99%
W&Q
1. Molecular Formula: MgO CAS NO.: 1309-48-4 Molecular Weight: 40.3
2. Property:
it is the preferred raw material for electrical ceramics, and it is also an important raw material for making high-grade magnesia bricks, magnesia carbon bricks and unshaped refractory materials, can be used to make high and ultra-high temperature resistant, compression, high-frequency insulation resistance, thermocouple materials, exectronic ceramic materials, ceramic, rockets for nuclear power nuclear furnace etc.
3. Specification(%):
Purity | 99.5min |
CaO | 0.03max |
| SiO2 | 0.03max |
| Fe2O3 | 0.03max |
| Al2O3 | 0.03max |
4. Packing:
In 25kg bag.

Product Overview
W&Q Electrically Fused Magnesia is a premium refractory material manufactured via high-temperature electric arc melting of high-purity magnesite ore.
With MgO content up to 98% and a uniform crystalline structure, W&Q’s product delivers superior hardness and thermal shock resistance, suitable for harsh high-temperature industrial environments.
W&Q adheres to strict raw material screening and melting process control to ensure each batch meets high-quality standards.
Product Benefits
① Superior Purity: W&Q electrically fused magnesia has low impurity content, ensuring excellent chemical stability in high-temperature conditions.
② Strong Thermal Shock Resistance: W&Q’s product can withstand rapid temperature changes without cracking, extending service life.
③ High Hardness: W&Q electrically fused magnesia features high density and hardness, resisting wear and erosion from molten materials.
④ Versatility: W&Q’s product is adaptable to multiple industrial scenarios, supporting diverse application needs.
Usage
W&Q electrically fused magnesia is widely used across key industries.
It is the core raw material for high-grade refractory bricks, castables, and furnace linings in steelmaking, non-ferrous metallurgy, and glass melting.
It is applied in electrical insulation materials, such as heating elements and high-temperature resistors, due to its excellent insulating performance.
It is also used in ceramic glazes, abrasive materials, and advanced composite materials to enhance product performance.
FAQ
Q1: What is the MgO content of electrically fused magnesia?
A1: The standard MgO content is over 99%, and W&Q can provide customized purity grades according to specific requirements.
Q2: How to store the product?
A2: Keep it in a dry, sealed warehouse to prevent moisture absorption, which helps maintain the excellent performance of W&Q electrically fused magnesia.
Q3: Does it offer customized particle sizes?
A3: Yes, W&Q provides tailored particle size distribution solutions to match different production and application scenarios.
Why Choose W&Q?
① Advanced Production Technology: W&Q adopts state-of-the-art electric arc melting equipment and precise temperature control systems to ensure product consistency.
② Strict Quality Assurance: W&Q implements full-process quality inspection, from raw material intake to finished product delivery, to guarantee reliability.
③ Customized Solutions: W&Q focuses on customer-centric services, offering personalized products and technical support.
④ Stable Supply Chain: W&Q has long-term cooperation with high-quality raw material suppliers and sufficient production capacity to meet bulk orders on time.