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Magnesium Oxide (MgO, CAS No. 1309-48-4) is a white, odorless powder known for its high melting point, thermal conductivity, and excellent chemical stability. Dr. Paul Lohmann GmbH & Co. KGaA produces high-purity Magnesium Oxide tailored to meet the demanding specifications of industries such as pharmaceuticals, food processing, nutraceuticals, and technical applications.
Thanks to its alkaline nature and high reactivity, Magnesium Oxide is widely used as an acid-neutralizing agent, magnesium source, and functional additive.
| Formula | MgO |
| Molecular weight | 40.3 g/mol |
| CAS No.: | 1309-48-4 |
| EINECS No.: | 215-171-9 |
| HS No.: | 25199010 |
| Product number | Product parameter | Storage conditions | Retest period | Additional information |
|---|---|---|---|
| 503046008 |
| Keep well closed, dry and at room temperature.; 36 months |
++ > 100 g/l | + 10 - 100 g/l | − 1 - 10 g/l | −− < 1 g/l
The solubility specified here was measured in water. The solubility is influenced by many factors in the application.
Dr. Paul Lohmann GmbH & Co. KGaA ensures compliance with international quality and regulatory frameworks:
Our robust in-house analytics and customizable documentation meet the strictest validation and audit requirements of global B2B partners.
As a leading Magnesium Oxide manufacturer and supplier, Dr. Paul Lohmann® provides unmatched support to sourcing professionals, R&D specialists, and production managers. Our product solutions are tailored for precise technical demands—whether you need high bulk density, low impurity levels, or specific flow properties.
Looking for a reliable Magnesium Oxide supplier with a strong record in quality and innovation?
Contact us today to discuss specifications, receive a product sample, or request documentation tailored to your industry.
Our Magnesium Oxide is engineered to support multiple critical applications:
Magnesium oxide is a well-established pharmaceutical substance widely used in various dosage forms due to its broad range of functional and therapeutic properties. As an inorganic magnesium compound, it serves primarily as a source of elemental magnesium—an essential mineral involved in over 300 enzymatic reactions within the human body. It is commonly used to treat and prevent magnesium deficiency, making it a key ingredient in many oral magnesium supplements.
In pharmaceutical formulations, magnesium oxide is found in tablets, capsules, and powders for oral administration. It is also used as an active ingredient in antacids for the rapid relief of heartburn and gastric hyperacidity. Due to its acid-neutralizing capacity, magnesium oxide is an effective component in over-the-counter gastrointestinal products, either alone or in combination with other antacid agents such as aluminum hydroxide.
Beyond its pharmacological effects, magnesium oxide also offers excellent functional performance as excipient in pharmaceutical manufacturing. It is used as a flow aid and compression enhancer in solid dosage forms, helping to improve the processability of tablet formulations.
As a concentrated and highly versatile magnesium source, magnesium oxide is a trusted choice for enriching foods and dietary supplements, supporting essential functions such as energy metabolism, muscle performance, and electrolyte balance.
In the food industry, Magnesium Oxide is valued for its neutral taste and is used to enrich a wide range of products, including infant formula, dairy powders, nutritional powders, nutritional drinks, meal replacement products, and other fortified foods designed to promote balanced nutrition.
Magnesium Oxide, with its high magnesium content and excellent stability, is widely used in dietary supplements and can be formulated into various dosage forms such as tablets, capsules, sticks, and effervescent tablets, providing flexibility for innovative product development and meeting diverse consumer preferences.
In the European Union, Magnesium Oxide is also approved as a food additive (E530), functioning as an acidity regulator and anti-caking agent. These properties help ensure product stability, prevent clumping, and maintain consistent quality in powdered formulations.
In the lubricant industry, Lohtragon® C46 functions as a highly effective thickening and viscosity control agent, particularly in magnesium-based greases. Its ability to improve consistency and thermal stability makes it a key additive for high-performance lubricants designed to operate under intense mechanical and thermal stress. By enhancing lubrication and reducing wear, it contributes to smoother machinery operation and extended equipment life, even in the most demanding industrial environments.
In the ceramics and glass industry, Magnesium Oxide is used as a fluxing agent in the production of glass ceramics. It lowers the melting point of raw materials, which improves the efficiency of the melting process and contributes to a higher-quality end product. Its role is essential in producing materials with excellent thermal stability, mechanical strength, and optical purity – qualities that are especially valuable for technical ceramics and high-end glass applications such as white or transparent products.
In dental ceramics, Lohtragon® C46 plays a critical role in the manufacturing of zirconia-based materials. It stabilizes the ceramic structure at high temperatures and supports consistent sintering behavior, which results in improved mechanical properties and long-term durability. Additionally, it enhances the optical characteristics of the final restoration, making it suitable for aesthetic and functional dental applications. Its contribution to uniform grain growth during processing ensures the production of strong and visually appealing ceramic restorations.
| Product | Product number | |
|---|---|---|
| Magnesium Oxide, heavy | 503046001 | |
| Magnesium Oxide, medium heavy | 503046002 | |
| Magnesium Oxide, light | 503046011, 503046007 | |
| Magnesium Oxide, microencapsulated | 503046020 | |
The information given on this Website corresponds to our current knowledge. We warrant in the frame of our General Terms and Conditions of Sale that our products are manufactured in accordance with the specifications. However, we disclaim any liability with regard to the suitability of our products for a particular purpose or application or their compatibility with other substances. Tests have to be performed by the customer who also bears the risk in this respect. Nothing herein shall be construed as a recommendation to use our products in conflict with third parties' rights.
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