Ammonium nitrate (NH₄NO₃) is an inorganic chemical compound widely used in agriculture and industry. It is an important nitrogen-containing material used in fertilizer production and is also supplied in different physical forms for specialized industrial applications.
So, what is ammonium nitrate, how is it made, what is ammonium nitrate used for, and what types are available?
This guide explains the basic properties, applications, product forms, safety considerations, and purchasing considerations of ammonium nitrate for fertilizer manufacturers, distributors, industrial users, and other professional buyers.
What Is Ammonium Nitrate?
Ammonium nitrate is an inorganic salt composed of ammonium ions (NH₄⁺) and nitrate ions (NO₃⁻). Its chemical formula is NH₄NO₃.
Commercial ammonium nitrate can be supplied in different physical forms, including prills, granules, and aqueous solutions, depending on its intended application. Solid ammonium nitrate is generally white or off-white and is commonly supplied as a granular or prilled material.
One of the key characteristics of ammonium nitrate is its nitrogen content. It provides nitrogen in both ammonium and nitrate forms, making it an important nitrogen fertilizer for agricultural applications.
The physical form, concentration, and composition of ammonium nitrate products can vary according to their intended use, manufacturing process, and applicable product standards.
Ammonium Nitrate at a Glance
| Property | Description |
|---|---|
| Chemical name | Ammonium nitrate |
| Chemical formula | NH₄NO₃ |
| CAS number | 6484-52-2 |
| Appearance | Typically white or off-white solid |
| Main commercial forms | Prills, granules, and aqueous solutions |
| Main elements | Nitrogen, hydrogen, and oxygen |
| Main agricultural use | Nitrogen fertilizer |
| Other applications | Industrial and specialized applications |
| Regulatory consideration | Classification depends on product composition and applicable regulations |
Ammonium Nitrate Chemical Formula and Basic Properties
The chemical formula of ammonium nitrate is NH₄NO₃.
Ammonium nitrate is a crystalline inorganic salt and a concentrated source of nitrogen. Its physical characteristics can vary depending on particle size, manufacturing process, moisture content, additives, and product grade.
For professional buyers, the most relevant product specifications may include nitrogen content, moisture, particle size distribution, bulk density, crushing strength, caking characteristics, and packaging requirements.
Different grades should be evaluated according to their intended application rather than assuming that all ammonium nitrate products have identical characteristics.
What Is Ammonium Nitrate Used For?
Ammonium nitrate has several important applications. Its largest commercial application in many markets is as a nitrogen fertilizer.
| Application | Role of Ammonium Nitrate | Typical Buyer |
|---|---|---|
| Agricultural fertilizer | Provides nitrogen in ammonium and nitrate forms | Fertilizer companies, distributors, agricultural suppliers |
| Fertilizer production | Used as a nitrogen source or feedstock for certain fertilizer products | Fertilizer manufacturers |
| Industrial applications | Used in selected industrial processes and products | Industrial chemical users |
| Mining-related applications | Certain specialized ammonium nitrate products are used in regulated industrial applications | Qualified industrial and mining companies |
The exact product grade required depends on the application, local regulations, technical specifications, and downstream processing requirements.
Ammonium Nitrate as a Fertilizer
One of the most important uses of ammonium nitrate is supplying nitrogen to agricultural crops.
Unlike fertilizers that provide nitrogen in only one major form, ammonium nitrate contains both ammonium and nitrate nitrogen. Nitrate nitrogen is readily available for plant uptake, while ammonium nitrogen provides another source of nitrogen that behaves differently in soil.
This combination makes ammonium nitrate an important nitrogen fertilizer for agricultural applications.
When evaluating ammonium nitrate fertilizer, buyers may consider:
Nitrogen content
Product purity
Particle size
Moisture content
Caking resistance
Physical strength
Storage characteristics
Packaging options
Applicable fertilizer standards
Supplier quality control
Types and Forms of Ammonium Nitrate
Ammonium nitrate can be supplied in several commercial forms. The appropriate form depends on the application, required specifications, transportation requirements, and downstream use.
| Product Type | Physical Form | Common Characteristics | Typical Application |
|---|---|---|---|
| Prilled Ammonium Nitrate | Small spherical particles | Controlled particle size and free-flowing characteristics | Fertilizer and specialized industrial applications |
| Porous Prilled Ammonium Nitrate | Porous prills | Specialized physical characteristics | Selected industrial applications |
| Granular Ammonium Nitrate | Larger granules | Designed for fertilizer handling and application | Agricultural fertilizer |
| Ammonium Nitrate Solution | Aqueous liquid | Supplied at a specified concentration | Fertilizer and downstream processing |
| Calcium Ammonium Nitrate | Solid fertilizer granules | Ammonium nitrate combined with calcium-containing components | Agricultural fertilizer |
Prilled Ammonium Nitrate
Prilled ammonium nitrate is manufactured into small, generally spherical particles known as prills.
Prill size, moisture content, crushing strength, and other physical characteristics can be important depending on the intended application.
Porous Prilled Ammonium Nitrate
Porous prilled ammonium nitrate is a specialized product characterized by its porous particle structure.
For professional industrial buyers, relevant specifications may include particle size distribution, moisture content, bulk density, crushing strength, and other technical parameters specified by the supplier and applicable standards.
Because specialized industrial applications can be subject to strict regulatory controls, buyers should ensure that the intended product, application, and shipment comply with all applicable requirements.
Granular Ammonium Nitrate
Granular ammonium nitrate is commonly associated with fertilizer applications.
Particle size distribution, moisture content, crushing strength, and resistance to caking can affect storage, transportation, and field application characteristics.
Ammonium Nitrate Solution
Ammonium nitrate can also be supplied as an aqueous solution.
Liquid ammonium nitrate products may be used in fertilizer production and other downstream applications. Concentration, temperature requirements, packaging or bulk transportation, and regulatory classification should be confirmed for the specific product.
Calcium Ammonium Nitrate
Calcium ammonium nitrate (CAN) is a nitrogen fertilizer containing ammonium nitrate together with calcium-containing components.
Compared with pure ammonium nitrate, CAN has a different composition and nutrient profile. It is widely used in agricultural applications.
When comparing ammonium nitrate and calcium ammonium nitrate, buyers should consider nitrogen content, calcium content, physical form, soil requirements, application method, and applicable fertilizer standards.
Ammonium Nitrate vs. Calcium Ammonium Nitrate
The two products are related but should not be treated as identical materials.
| Feature | Ammonium Nitrate | Calcium Ammonium Nitrate |
|---|---|---|
| Main nitrogen source | Ammonium and nitrate nitrogen | Primarily ammonium and nitrate nitrogen |
| Calcium content | Not inherently a calcium fertilizer | Contains calcium-containing components |
| Typical form | Prills, granules, or solution | Generally solid granules |
| Main application | Nitrogen fertilizer and industrial applications | Agricultural fertilizer |
| Product specification | Depends on grade and application | Depends on CAN grade and fertilizer standard |
| Regulatory classification | Depends on formulation and applicable regulations | Depends on formulation and applicable regulations |
Is Ammonium Nitrate Dangerous?
Ammonium nitrate should be handled as a regulated chemical product because it has oxidizing properties.
It does not behave like an ordinary combustible fertilizer. Under certain conditions, ammonium nitrate can intensify combustion and may present serious hazards when exposed to excessive heat, contamination, or incompatible materials.
For this reason, responsible ammonium nitrate management requires appropriate storage, handling, transportation, emergency planning, and regulatory compliance.
The exact requirements vary by country and product classification. Professional users should follow the applicable Safety Data Sheet (SDS), transportation regulations, local laws, and competent-authority requirements.
The regulatory classification of an ammonium nitrate product should be confirmed based on the specific formulation and applicable dangerous goods regulations.
Ammonium Nitrate Classification and Regulatory Considerations
Ammonium nitrate is frequently associated with Class 5.1, oxidizing substances, but the exact classification should not be determined from the chemical name alone.
Different ammonium nitrate and ammonium nitrate-based fertilizer products can have different classifications depending on composition, concentration, physical properties, and applicable regulations.
| Regulatory Factor | Why It Matters |
|---|---|
| Product composition | Different formulations can have different classifications |
| Ammonium nitrate concentration | Concentration can affect applicable regulatory requirements |
| Physical form | Solid and liquid products may be subject to different requirements |
| Intended application | Product use can affect applicable standards and controls |
| Country of destination | National regulations may differ |
| Transportation method | Road, rail, sea, and other transport modes may have specific requirements |
| Packaging | Packaging must comply with applicable dangerous goods requirements |
| Documentation | SDS, COA, classification and shipping documentation may be required |
Manufacturers, exporters, distributors, and end users should confirm the classification of the specific product before transportation or commercial use.
How Is Ammonium Nitrate Made?
At a basic chemical level, ammonium nitrate is produced through the reaction of ammonia with nitric acid:
NH₃ + HNO₃ → NH₄NO₃
The resulting ammonium nitrate solution can then be processed into different commercial forms depending on the final product.
Industrial manufacturing can include solution formation, concentration, solidification, finishing, screening, coating, packaging, or bulk shipment.
Different production technologies and quality-control systems can result in differences in particle characteristics, moisture content, strength, consistency, and other product specifications.
For commercial buyers, the production process is important primarily because it affects the consistency and quality of the final product.
What Should You Look for in an Ammonium Nitrate Manufacturer?
For professional buyers, choosing an ammonium nitrate manufacturer involves more than comparing price.
| Supplier Evaluation Factor | What Buyers Should Check |
|---|---|
| Production capacity | Ability to supply required volumes consistently |
| Product range | Availability of the required ammonium nitrate grade or related products |
| Quality control | Batch consistency and product testing |
| Technical specifications | Nitrogen content, moisture, particle size, strength, and other relevant parameters |
| Export experience | Experience with international shipping and documentation |
| Regulatory compliance | Ability to provide appropriate safety and regulatory documentation |
| Packaging | Suitable packaging or bulk shipment options |
| Logistics | Port access, lead times, and destination-market requirements |
| Technical support | Ability to answer product and specification questions |
| Long-term supply | Capacity to support repeat orders and supply agreements |
For large-volume buyers, a manufacturer's production capacity and ability to maintain consistent product quality can be particularly important.
Ammonium Nitrate Products from San Corporation
San Corporation is a China-based ammonium nitrate manufacturer and exporter with large-scale production capabilities and international supply experience.
Founded in 2002, the company has developed manufacturing, research, and technical capabilities for ammonium nitrate and related nitrogen fertilizer products.
Its product portfolio includes:
| Product | Main Product Category |
|---|---|
| Porous Prilled Ammonium Nitrate (PPAN) | Specialized prilled ammonium nitrate |
| Chemical Pure Ammonium Nitrate | High-purity chemical product |
| Urea | Nitrogen fertilizer |
| Calcium Ammonium Nitrate | Compound nitrogen fertilizer |
| Calcium Nitrate | Calcium and nitrogen fertilizer |
| Urea Ammonium Nitrate Solution | Liquid nitrogen fertilizer |
San Corporation operates a large-scale manufacturing base and has an annual ammonium nitrate production capacity of approximately 1.2 million metric tons.
The company serves professional customers including distributors, fertilizer companies, industrial users, and other qualified large-volume buyers.
For international procurement, product specifications, required volumes, destination country, packaging, documentation, and intended application should be confirmed with the manufacturer before an order is placed.
Frequently Asked Questions About Ammonium Nitrate
What is ammonium nitrate?
Ammonium nitrate is an inorganic chemical compound with the formula NH₄NO₃. It is widely used as a nitrogen fertilizer and has additional industrial applications.
What is the chemical formula of ammonium nitrate?
The chemical formula of ammonium nitrate is NH₄NO₃.
What is ammonium nitrate used for?
Ammonium nitrate is primarily used as a nitrogen fertilizer and is also used in selected industrial applications.
Is ammonium nitrate a fertilizer?
Yes. Ammonium nitrate is an important nitrogen fertilizer because it supplies nitrogen in both ammonium and nitrate forms.
What is prilled ammonium nitrate?
Prilled ammonium nitrate is ammonium nitrate manufactured into small, generally spherical particles called prills.
Is ammonium nitrate an oxidizer?
Ammonium nitrate has oxidizing properties, and certain products are classified as Division 5.1 oxidizing substances under dangerous goods regulations. The exact classification depends on the specific product and applicable regulatory requirements.
What is the difference between ammonium nitrate and calcium ammonium nitrate?
Ammonium nitrate is NH₄NO₃, while calcium ammonium nitrate is a fertilizer product containing ammonium nitrate together with calcium-containing components. They differ in composition, nutrient profile, physical characteristics, and applications.
How do I choose an ammonium nitrate supplier?
Professional buyers should consider production capacity, product specifications, quality control, export experience, documentation, regulatory compliance, packaging, logistics, and the supplier's ability to provide a consistent long-term supply.
Conclusion
Ammonium nitrate is an important nitrogen-containing chemical used extensively in fertilizer production and a range of industrial applications. Its chemical formula is NH₄NO₃, and it can be supplied in different forms, including prills, granules, and solutions.
Understanding the differences between ammonium nitrate products is important for fertilizer distributors, industrial users, and international buyers when selecting the appropriate grade and supplier.
San Corporation is an established ammonium nitrate manufacturer and exporter offering a range of ammonium nitrate and related nitrogen fertilizer products for professional and large-volume customers.
For product specifications, availability, export requirements, and large-volume supply, contact San Corporation to discuss your requirements.
