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Ulexite

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Overview

Ulexite is a naturally occurring sodium calcium borate mineral that can be processed and used as a boron source in fertilizers and crop nutrition products. Supplied in selected technical grades, it provides boron in a mineral form with defined composition and particle size, suitable for industrial use in agricultural value chains rather than direct handling by end users.


In crop nutrition programs, ulexite is evaluated as a boron source in granular blends, bulk fertilizers and other formulations where boron supplementation is required and where a mineral borate is compatible with the overall product concept. Boron is an essential micronutrient for many crops, but the acceptable application rates and methods are tightly constrained because the margin between deficiency and toxicity can be narrow. Decisions on the use of ulexite must therefore be based on soil and tissue analyses, crop needs and local agronomic practice, assessed by the customer's own technical teams.


Bisley International focuses on supplying consistent technical-grade ulexite with specified boron content (typically expressed as B or B2O3), particle size distribution and impurity limits. Product documentation, including technical data sheets and safety data sheets, is provided to support quality control and safe handling. As with all boron-containing materials, users should confirm compatibility with other fertilizer components and comply with relevant safety, environmental and regulatory requirements before use.

Applications, characteristics and considerations

Applications in fertilizers and crop nutrition

Ulexite is used as a technical boron source in a range of fertilizer and crop nutrition products, subject to local regulations and the performance requirements of each formulation. Typical applications may include:

  • Boron component in granular and bulk-blended fertilizers designed to supplement boron in soils with identified deficiencies.
  • Ingredient in specialty boron-containing fertilizers for field crops, fruit, vegetables and oilseeds, where a mineral borate source aligns with the product concept.
  • Use in selected formulations as a relatively slower-dissolving boron source compared with highly soluble boron salts, where such behaviour is desired by the formulator.

Key characteristics and composition

As a natural mineral, ulexite has characteristic boron content and mineralogical features that are reflected in its technical specifications. Typical aspects considered in fertilizer applications include:

  • Boron content expressed as B or B2O3, defining the boron contribution per unit weight of product, as set out in the technical data sheet.
  • Particle size distribution tailored to fertilizer manufacture and blending requirements, influencing granulation, mixing and spreading behaviour.
  • Limited solubility compared with fully soluble boron salts, which may be considered when designing application rates and expected boron availability over time.
  • Specified limits on key impurities and associated minerals typical of borate deposits, according to the product's technical grade.

Handling, environmental and selection considerations

Because boron is both essential and potentially toxic at elevated levels, careful handling and program design are required when working with ulexite and other boron sources. Customers should consider:

  • Compliance with the safety data sheet (SDS), including dust control, personal protective equipment and appropriate storage conditions.
  • Local legal limits and guidelines for boron application to agricultural land, especially for boron-sensitive crops and light-textured soils.
  • Compatibility with other fertilizer components and additives to maintain product stability, blend uniformity and predictable nutrient delivery.

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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.