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Magnesium Oxide

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Overview

Magnesium Oxide (MgO) is a reactive alkaline oxide produced from selected magnesium-containing raw materials. In agricultural value chains it is used as a technical source of magnesium for fertilizers, feed premixes and other specialty products where a defined Mg content and controlled reactivity are required. The material supplied by Bisley International is intended for industrial processing rather than direct use by end users.


In crop nutrition, magnesium oxide can be incorporated into granular and blended fertilizers or used as a raw material for further processing into other magnesium salts. In animal nutrition, certain grades of magnesium oxide are used in feed premixes and supplements as a magnesium source, subject to local regulations and product registrations. The actual suitability of any MgO grade depends on factors such as particle size, reactivity, impurity profile and the overall formulation concept and must be evaluated by the customer's technical team.


Bisley International focuses on supplying consistent technical grades of magnesium oxide with specified assay, loss on ignition, bulk density and impurity limits. Magnesium oxide is alkaline and can be caustic in contact with moisture, so appropriate handling, storage and personal protective equipment are required. Users should always consult the latest technical data sheet, safety data sheet and certificate of analysis and ensure compliance with local safety, environmental and regulatory requirements before use.

Applications, characteristics and considerations

Applications in fertilizers and animal nutrition

Magnesium Oxide is used as a technical magnesium source in a range of agricultural products, subject to local regulations, registration status and the performance requirements of each formulation. Typical applications may include:

  • Magnesium component in compound and blended fertilizers designed to supply magnesium to soils and crops.
  • Raw material for manufacturing other magnesium salts used in crop nutrition programs.
  • Source of magnesium in feed premixes and supplements for livestock, where the use of magnesium oxide is permitted and correctly regulated.

Key characteristics

Magnesium Oxide supplied through Bisley International is produced to a defined technical specification suitable for industrial processing and use in agricultural value chains. Typical characteristics include:

  • Reactive alkaline oxide with a defined magnesium content, expressed as MgO.
  • Typical specification for assay and loss on ignition, as set out in the technical data sheet.
  • Controlled particle size distribution and bulk density to support blending and handling performance.
  • Specified limits on key impurities, such as heavy metals and insoluble material, according to the product's technical grade.

Handling, safety and selection considerations

Because Magnesium Oxide is alkaline and can react with moisture, appropriate precautions are needed during storage and handling. When selecting and using MgO, customers should consider:

  • Compliance with the safety data sheet (SDS), including suitable personal protective equipment and dust control measures.
  • Appropriate storage conditions to minimise moisture pick-up and maintain product flowability and reactivity.
  • Compatibility with other fertilizer or feed components, especially acids, salts and additives that may influence stability and performance.

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ADDITIONAL INFORMATION

Technical support, documentation & logistics

All agricultural raw materials supplied by Bisley International are backed by clear specifications, consistent quality and practical support from our commercial and technical teams. Use this section as a quick guide to how we work with buyers in crop nutrition, feed and related applications.

Technical data & documentation

For each agricultural chemical we can provide up-to-date technical documentation to support your evaluation and regulatory review.

  • Product specifications / typical analysis (TDS)
  • Safety data sheets (SDS) and handling guidance
  • Certificates of analysis (COA) available with each batch
  • Regulatory statements on request, where applicable

Packaging, shipment & delivery

We work with global producers and logistics partners to align product, packaging and delivery terms with your process and route-to-market.

  • Typical options include bags, big bags and other industrial formats
  • Support for containerized shipments and bulk programs
  • Flexible Incoterms and ports, discussed during quotation
  • Coordination with your forwarder, where required

Application-oriented support

Our role is to help connect you with suitable grades and producers for your application, whether you are formulating fertilizers, foliar sprays, feed premixes or other solutions.

  • Discussion of target nutrient content and impurity limits
  • Options across different origin, grade or physical form
  • Support during qualification, sampling and first deliveries
FAQ

Frequently asked questions

Below you will find answers to common questions about Bisley International's agricultural raw materials, documentation and supply approach. All items are collapsed by default, so you can quickly open the topics most relevant to your business.

Which agricultural markets does Bisley International serve?
Bisley International focuses on supplying raw materials for crop nutrition and related segments, including fertilizers, foliar products, fertigation, seed treatment and selected animal nutrition applications. We do not manufacture finished fertilizers or crop protection products; instead, we support producers and formulators with consistent, specification-driven raw materials.
How can I request TDS, SDS and COA for a product?
When you submit an enquiry via the contact form or through your usual Bisley representative, please specify which agricultural chemical you are interested in and the intended use. Our team will share the appropriate technical data sheet, safety data sheet and, where relevant, example certificates of analysis. COA are issued per batch with commercial deliveries.
What is the minimum order quantity (MOQ)?
Minimum order quantities depend on the specific product, origin, packaging and shipping route. Many materials are supplied by the full container load or truckload. Smaller lots may be possible in certain regions via local stock or consolidation. We will clarify practical MOQ and shipment sizes as part of the quotation process.
Which packaging formats are available?
Packaging options vary by product and producer. Typical formats for agricultural chemicals include 25 kg bags, big bags and other industrial containers designed for efficient handling and storage. Available formats and labelling options are discussed with you during enquiry and quotation.
Do you keep stock, or supply only on a made-to-order basis?
The supply model depends on the product and destination. Some materials are shipped directly from producers to customers on a contractual or spot basis, while others may be available from regional stock. During discussion we will outline realistic lead times and whether stock programs could be appropriate for your demand pattern.
Can Bisley International recommend grades for my formulation?
We can help you narrow down suitable raw materials and typical specification ranges based on your target nutrient content and application. However, we do not provide formulation, agronomy or regulatory advice. Final selection, testing and approval of any material must be carried out by your own technical team in line with local requirements.
To which regions can you supply agricultural raw materials?
Bisley International operates with a global outlook. For specific agricultural chemicals we can discuss supply into North America, Latin America, Europe, the Middle East, Africa and Asia-Pacific, subject to commercial, logistical and regulatory feasibility. Please describe your preferred destination when you contact us.
How do I obtain pricing and availability for a specific product?
Please use the enquiry form on this website or contact your usual Bisley representative. Sharing details such as target product, volume, destination and timing will help us to respond with a focused discussion on supply possibilities, lead times and indicative commercial terms.
Do you provide agronomic or advisory services to growers?
No. Bisley International supplies raw materials to companies active in crop nutrition and related value chains. We do not provide agronomic recommendations, application rates or advisory services to farmers or growers. Those decisions should be taken together with your own advisors and local experts.
Where can I learn more about your agricultural product range?
You can explore key agricultural chemicals and mineral nutrients on this website, including calcium, magnesium, phosphate, boron and zinc salts used in modern crop nutrition. If you do not see a particular material listed, please contact us directly: we may still be able to discuss potential sourcing options with you.