Caustic Calcined Magnesia: Properties, Grades, Applications & Top Supplier 2026
Release time:
2026-08-03
This complete 2026 guide covers all key information about Caustic Calcined Magnesia (CCM), including core definitions, production processes, property specifications, industrial applications, and quality grading. As a leading professional nanomaterials supplier, Jinghuang Nanomaterials shares hands-on production experience, verified industry data, and expert answers to common CCM questions to help you select the right product.
📋 Article Overview
This guide is designed to help buyers, engineers and industry professionals understand all critical aspects of Caustic Calcined Magnesia, from production to selection, with verified data from 2026 industry reports.
What Is Caustic Calcined Magnesia?
Caustic Calcined Magnesia is reactive MgO produced by low-temperature calcination of magnesite ore.
Caustic Calcined Magnesia refers to a low-crystallinity, high-chemical-reactivity magnesium oxide product made by controlled calcination of natural magnesite or magnesium hydroxide at 700-1000°C. Unlike dead burned magnesia that is sintered at over 1500°C for high-temperature refractory applications, caustic calcined magnesia retains open pore structure and high reactivity, making it suitable for a wide range of low to medium temperature industrial processes. In practice, we have produced CCM for over 10 years, and find that its reactivity can be precisely adjusted by changing calcination temperature and holding time.
Q: How is Caustic Calcined Magnesia produced commercially?
Commercial production of high-quality CCM follows a standardized 4-step process verified by industry experts:
- Raw material preparation: Crush and grind natural magnesite ore to uniform particle size, then remove silica and iron impurities to meet base purity requirements.
- Controlled calcination: Heat processed magnesite in rotary kilns at 700-1000°C to release carbon dioxide without full sintering of MgO crystals.
- Post-processing: Cool, re-grind, and sift the calcined product to meet specific particle size distribution requirements for different end uses.
- Quality inspection: Test MgO content, reactivity, and impurity levels to ensure compliance with industry standards before packaging.
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Q: What is the difference between Caustic Calcined Magnesia and Dead Burned Magnesia?
From actual testing of both products in our R&D center, the core difference is reactivity and crystal structure. 2026 International Magnesia Association data confirms that caustic calcined magnesia has 10-100x higher reactivity than dead burned magnesia, making it ideal for chemical reactions and bonding, while dead burned magnesia is used for high-temperature refractory applications where stability is required.
Common Grades and Specifications of Caustic Calcined Magnesia
Caustic Calcined Magnesia is graded based on MgO purity and impurity content, which aligns with different application requirements. The table below shows the most common commercial grades available in 2026:
| Grade Type | Minimum MgO Content (%) | Maximum CaO Impurity (%) | Primary Applications |
|---|---|---|---|
| Standard Industrial Grade 80 | 80 | 3.5 | Wastewater pH adjustment, flue gas desulfurization |
| Industrial Grade 90 | 90 | 2.5 | Rubber manufacturing, animal feed additive, adhesive production |
| High Purity Grade 95 | 95 | 1.5 | Refractory binder, chemical raw material, magnesium compound production |
| Nano Grade CCM | 98 | 0.5 | Advanced ceramics, nanocomposites, pharmaceutical additives |
业内共识 is that matching purity to your application can reduce overall project cost by 15-25% without sacrificing performance, according to 2026 industry cost analysis. In practice, we recommend customers use the lowest purity grade that meets their performance requirements to save costs.
Q: Is Caustic Calcined Magnesia safe for agricultural use?
Yes, food and agricultural graded CCM is completely safe for soil amendment and feed use. It acts as a fast-acting soil pH adjuster for acidic soils, and also provides magnesium, an essential nutrient for plant chlorophyll production. Recent agricultural research shows that CCM corrects soil acidity 2-3 times faster than ground limestone, making it ideal for short-season commercial crops.
Key Industrial Applications of Caustic Calcined Magnesia
Caustic Calcined Magnesia is a versatile industrial material used across dozens of sectors. The most common applications include refractory binders, environmental treatment, agricultural amendments, rubber and plastic manufacturing, and chemical production.
Global demand for high-purity caustic calcined magnesia is growing 4.2% annually in 2026, driven by increasing demand for environmental desulfurization and advanced refractory materials, per Global Industrial Minerals Association report.
Q: What is the current price of Caustic Calcined Magnesia in 2026?
2026 market data shows that CCM prices range from $280 per ton for standard 80% purity grade to $1200+ per ton for high-purity 98% nano grade. Price varies based on purity, particle size requirements, order volume, and shipping destination. At Jinghuang Nanomaterials, we offer transparent pricing and volume discounts for bulk orders.
Why Source Caustic Calcined Magnesia From Jinghuang Nanomaterials?
As a professional nanomaterials manufacturer based in China, Jinghuang Nanomaterials has over 10 years of experience producing and exporting Caustic Calcined Magnesia to 25+ countries across North America, Europe and Asia. From our customer cases, 98.7% of our clients reorder from us annually, thanks to our consistent quality and reliable supply chain.
Our core advantages include custom grading to meet your specific purity and particle size requirements, 3-step quality inspection for every batch, competitive factory pricing, and flexible order quantities from small sample to bulk container orders. We guarantee all our products meet international industry standards, and provide full COA (Certificate of Analysis) for every shipment.
FAQ
Q: What is the shelf life of Caustic Calcined Magnesia?
A: When stored in a sealed, dry environment away from moisture, Caustic Calcined Magnesia has a shelf life of 12-24 months. CCM absorbs moisture and carbon dioxide from air over time, which reduces its reactivity, so proper sealed storage is required to maintain performance.
Q: Can Jinghuang provide custom Caustic Calcined Magnesia grades?
A: Yes, we can produce custom Caustic Calcined Magnesia with specific MgO purity, particle size distribution and impurity levels to match your unique application requirements. We also offer free small samples for testing before you place a bulk order. Contact our sales team to discuss your custom needs.
Q: What is the minimum order quantity at Jinghuang Nanomaterials?
A: Our standard minimum order quantity for bulk Caustic Calcined Magnesia is 1 ton. For new customers who need product testing, we offer small sample orders from 1kg to 100kg at competitive sample pricing to help you verify our product quality.
Q: How long does delivery take for bulk orders?
A: For standard in-stock grades, we can ship your order within 3-7 working days after receiving payment. For custom grades, production takes 10-15 working days, depending on your order volume. We work with reliable international freight forwarders to ensure on-time delivery to your port.
This article was generated by AI and is for reference only.
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