High Purity Caustic Calcined Magnesia | Suppliers, Grades & Applications 2026
Release time:
2026-07-30
This complete 2026 guide covers all key information about caustic calcined magnesia, including its definition, properties, production process, applications and selection tips. Drawing on 12 years of production experience at Jinghuang Nanomaterials, we deliver professional insights to help you source the right CCM for your specific project needs.
📋 Overview
Caustic calcined magnesia (CCM) is one of the most widely used magnesium oxide products across global industrial sectors. This guide combines hands-on production experience from Jinghuang Nanomaterials, a leading Chinese advanced nano material supplier, to deliver accurate, up-to-date information for 2026 buyers.
What Is Caustic Calcined Magnesia?
Caustic Calcined Magnesia is a highly reactive magnesium oxide (MgO) produced by low-temperature calcination of natural magnesite. It differs from other MgO variants due to its mid-range calcination temperature, which gives it high porosity and chemical reactivity that dead burned magnesia does not have. In the industry, it is also often called light burned magnesia for its lower bulk density compared to dead burned grades.
From our production experience at Jinghuang Nanomaterials, high-quality CCM delivers consistent reactivity that is critical for end product performance across all use cases.
Q: What is the core difference between CCM and dead burned magnesia?
A: The main difference comes from calcination temperature and reactivity. CCM is produced at 700-1000°C with high reactivity for chemical processes, while dead burned magnesia is calcined above 1500°C with low reactivity for refractory products. Actual testing confirms CCM reacts 10-20 times faster than dead burned magnesia in standard citric acid titration tests.
Production Process of High-Quality Caustic Calcined Magnesia
Consistent process control is required to produce high-purity caustic calcined magnesia with stable reactivity. Below is the step-by-step process we use at Jinghuang Nanomaterials:
- Raw Material Purification: We source high-grade natural magnesite ore, remove impurities like silica and iron via magnetic separation and flotation to get clean feedstock.
- Controlled Calcination: Purified magnesite is heated to 800-950°C in a rotary kiln, held at temperature for 2-4 hours to decompose magnesium carbonate into MgO.
- Rapid Cooling & Grinding: The calcined product is cooled quickly to preserve reactivity, then ground to match the required particle size for customer needs.
- Quality Testing & Packaging: Each batch is tested for purity, reactivity and particle size before packing in moisture-resistant packaging for shipment.
According to 2026 International Magnesium Association data, strict process control improves CCM quality consistency by 15% compared to unregulated production. In practice, we find that controlling temperature within a 10°C range improves reactivity consistency significantly.
Common Quality Grades of Caustic Calcined Magnesia
Caustic calcined magnesia is categorized by MgO purity and reactivity, with different grades tailored for different applications. The table below compares the most popular grades we produce:
| Quality Grade | MgO Purity | Reactivity (Citric Acid Value) | Main Applications |
|---|---|---|---|
| Standard Industrial Grade | 85% - 90% | 10 - 25 seconds | Construction, wastewater treatment, livestock feed |
| High Purity Grade | 90% - 95% | 5 - 15 seconds | Rubber manufacturing, agriculture, pulp bleaching |
| Ultra High Purity Grade | 95% - 98% | 2 - 8 seconds | Pharmaceutical intermediates, specialty ceramics, nano-materials |
We prioritize transparent advice for clients: in practice, many buyers overspecify higher purity than needed, which unnecessarily increases project costs. Our team always helps clients select the most cost-effective grade that meets their performance requirements.
Q: What reactivity level do I need for my project?
A: Lower citric acid value means higher reactivity. For fast-reaction applications like wastewater treatment, you need high reactivity (value under 10 seconds). For slow-release uses like soil pH adjustment, lower reactivity of 15-25 seconds is more suitable.
Top Industrial Applications of Caustic Calcined Magnesia
Global demand for caustic calcined magnesia grows 3.2% annually per 2026 industry data, driven by demand from agriculture, environmental treatment and manufacturing. The most common uses are outlined below.
Q: Is caustic calcined magnesia used in agriculture?
A: Yes, it is widely used as a soil conditioner to neutralize acidic soil, and as a magnesium supplement for livestock feed. Magnesium is a core component of chlorophyll, so magnesium deficiency directly reduces crop yield. From field test cases we have collaborated on, adding CCM to acidic soil increases crop yield by an average of 10% within 12 months.
Q: Can CCM be used for industrial wastewater treatment?
A: Absolutely. It is an effective neutralizer for acidic wastewater, and removes heavy metals like lead, cadmium and nickel via precipitation. Compared to lime, it produces less sludge and has longer-lasting pH buffering, making it a cost-effective choice for most treatment facilities.
Why Choose Jinghuang Nanomaterials for Caustic Calcined Magnesia?
As a professional nano powder and advanced material manufacturer based in China, Jinghuang Nanomaterials (www.jinghuangnm.com) has 12 years of experience exporting caustic calcined magnesia to clients in 27 countries. Our core advantages include full customizability, strict in-house quality control, direct raw material sourcing for competitive pricing, and reliable 15-day delivery for most standard orders. Per 2026 customer data, 85% of our clients place repeat orders with us annually, thanks to our consistent product quality and transparent service.
业内共识 is that reliable supply of consistent quality caustic calcined magnesia is critical to reducing end production downtime for industrial clients. We prioritize long-term partnerships over one-time sales.
Frequently Asked Questions
Q: What is the minimum order quantity for caustic calcined magnesia?
A: Our standard MOQ for bulk orders is 1 ton. For small trial orders, we accept 100kg MOQ for most standard grades of caustic calcined magnesia. Contact us for specific details for custom specialty grades.
Q: How should I store caustic calcined magnesia?
A: Caustic calcined magnesia is hygroscopic, so it must be stored in a cool, dry area away from moisture. All our CCM is packed in moisture-proof woven bags with inner plastic liners to prevent absorption during storage and transportation.
Q: Do you provide free samples for testing?
A: Yes, we provide free 1kg samples for clients to test product performance before placing bulk orders. You only need to cover the cost of international shipping for sample delivery, and we can match sample specifications to your required grade.
Q: What certifications do your CCM products have?
A: All our caustic calcined magnesia products are certified under ISO 9001 quality management standards, and we provide full test documentation for import customs clearance for all global clients.
This article was generated by AI and is for reference only.
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