Technical urea: properties and applications
Technical urea (carbamide, urea) is a colourless, odourless crystalline solid and one of the most important products of the chemical industry. Its chemical formula is (NH₂)₂CO, with a relative molecular mass of 60.06. Urea is highly soluble in water, alcohol and liquid ammonia, and is practically non-toxic (LD50 for rats is 15 g/kg). Technical urea serves as the basis for a range of industrial products — from resins and adhesives to reagents for cleaning diesel engine exhaust gases.
Regulatory Framework and Grades
Requirements for urea in Russia and CIS countries are regulated by GOST 2081-2010 "Carbamide. Specifications". The standard applies to granular (prilled) and crystalline urea produced from ammonia and carbon dioxide. Depending on the intended use, urea is produced in two grades:
Grade A — for industry. Used as a feedstock in the manufacture of urea-formaldehyde resins, adhesives, melamine, cyanuric acid, pharmaceuticals and cosmetics. The mass fraction of nitrogen, calculated on a dry basis, is at least 46.2% for first grade.
Grade B — for crop production, animal husbandry and retail sale as a mineral nitrogen fertiliser and feed additive.
Production Technology
Modern industrial urea production is based on synthesis from ammonia and carbon dioxide under high pressure. The process includes several stages: formation of ammonium carbamate by the reaction of NH₃ and CO₂, dehydration of carbamate to form urea and water, evaporation of the solution, granulation or prilling, and conditioning of the finished product. Key process parameters are temperature, pressure and the molar ratio of ammonia to carbon dioxide. China is the world's largest urea producer, accounting for about 40% of global capacity.
Properties and Technical Characteristics
Urea is a colourless crystalline solid, readily soluble in water, alcohol, liquid ammonia and sulfurous anhydride. Its melting point is 132–135 °C. The content of the main substance in technical urea is at least 99%. The mass fraction of nitrogen is at least 46%. The content of biuret (a by-product toxic to plants) is strictly regulated and typically does not exceed 0.5%.
An important feature of technical urea is its high purity. Unlike agricultural urea, the technical product does not contain coatings or additives, making it suitable for use in chemical synthesis and the production of reagents for automotive systems.
Applications
Production of urea-formaldehyde resins. This is the largest consumption area for technical urea. Resins based on urea and formaldehyde are widely used as adhesives in the production of fibreboard (MDF), plywood and furniture. Urea-formaldehyde resins provide a strong bond for wood materials and are the basis for laminates and hot-cure adhesives.
Production of AdBlue and SCR systems. Technical urea is the main component of a 32.5% aqueous urea solution known as AdBlue, DEF or AUS 32. This solution is used in selective catalytic reduction (SCR) systems to reduce nitrogen oxide (NOx) emissions from diesel engines. AdBlue complies with ISO 22241-1 and is the only type of urea suitable for DEF production. The growth of the diesel truck fleet and tightening environmental standards in Europe and North America make this one of the fastest-growing segments.
Production of melamine. Urea serves as a feedstock for melamine — a key component of melamine-formaldehyde resins used in laminates, tableware and fire-retardant materials.
Other applications. Technical urea is used to produce cyanuric acid (a component of disinfectants and stabilisers), azodicarbonamide (a blowing agent for plastics), as a feed additive in animal husbandry, for wastewater treatment, and as a cloud seeding agent.
Global Market
Estimates of the global technical urea market vary depending on the methodology. According to Global Info Research, the technical grade urea market was valued at USD 79.58 billion in 2025 and is forecast to reach USD 88.0 billion by 2032 at a CAGR of 1.5%. According to 24 Chemical Research, the technical urea market was valued at USD 5.95 billion in 2025 and is projected to grow to USD 8.74 billion by 2032 at a CAGR of 5.3%.
The overall urea market in 2025 is valued differently: from USD 58–65 billion (Research and Markets) to USD 123.3 billion (Global Info Research). This discrepancy is explained by differences in accounting methodology and the inclusion of different segments. China remains the world's largest urea producer, accounting for about 40% of global capacity.
Key drivers of the technical urea market include the expansion of agricultural production in developing countries, tightening environmental standards for diesel engines, growth in the production of wood-based panels and furniture, and the development of chemical synthesis. The main constraint remains the volatility of natural gas prices, which account for 70–80% of urea production costs.
Production in Russia
Russia is one of the world's largest producers and exporters of urea. In 2025, urea production in Russia grew by 10% to 11.5 million tonnes. Urea exports in 2025 increased by 11% to 10.8 million tonnes. Domestic demand for urea in Russia decreased by 13% to 700,000 tonnes.
The largest urea producers in Russia are Acron, EuroChem, Uralchem and other enterprises. In December 2025, Uralchem and the Indian companies National Fertilizers Limited and Indian Potash Limited signed a memorandum of understanding to create a joint venture for the construction of a urea plant in Russia with a capacity of 1.8–2 million tonnes per year. The project is being considered in Taman, in close proximity to the ammonia and nitrogen fertiliser transshipment terminal. Russia's share of urea supplies to India grew from 1% in 2021 to about 23% in 2025.
Safety and Storage
Urea is practically non-toxic and non-flammable. When working with it, personal protective equipment must be used: respirators, protective goggles and protective clothing. Storage is carried out in dry, well-ventilated areas, away from heat sources and moisture. Urea is hygroscopic, so during storage it is necessary to prevent moistening, which can lead to caking and loss of flowability. When heated above the melting point, urea decomposes with the release of ammonia and carbon dioxide.
Conclusion
Technical urea (carbamide) remains one of the key products of the global chemical industry, providing for the production of resins, adhesives, melamine, cyanuric acid and reagents for exhaust gas cleaning systems. Growing demand for wood-based panels and furniture, tightening environmental standards for diesel engines and the expansion of chemical synthesis create sustained demand for this essential product. Russia, possessing significant production capacities and implementing large investment projects, maintains its position as one of the leading players in the global urea market.