Carbamide, commonly known as urea, is a nitrogen fertilizer in the form of amide. It holds the title of being the most concentrated among all nitrogen fertilizers and is typically available in granular form. Granular urea boasts excellent physical attributes, resisting clumping and maintaining good dispersion. It finds application across all agricultural crops, administered in solution form for both primary application and foliar feeding. Carbamide serves as the primary fertilizer across all soil types for a wide array of crops.

Physico-chemical properties and components

• Physico-chemical properties
• Aggregate state - Solid
• Look - colorless crystals or white crystalline powder
• Smell - Absence
• Melting point - (132,5-134,5)°C
• Boiling point - Decomposes below the boiling point
• Decomposition temperature - At 1800°C begins to decompose with the release of ammonia
• Solubility in water - 590 g/l (20 °C)
• Solubility in organic solvents - Ethanol (5.4 g/100 g at 200C), methanol (5.4 g/100 g at 200C). It does not dissolve in chloroform, diethyl ether and benzene.
• Specific weight - 1,33 g/cm (20°C)
• рН - pH 7,2 (10% solution)
• Flammability - Flash point: 182°C; ignition temperature: 223°C; auto-ignition temperature: 4700C (air suspension)
• Molecular weight - 60,06
• Distribution coefficient in the octanol-water system - Log Kow=-2.11; Log P(oct)=-2.97 to -2.26
• Vapor pressure - 0,002 hPa (750C)

The widespread utilization of technical granular sulfur extends across various industries. It serves in the manufacture of fertilizers, pesticides, rubber goods, pharmaceuticals, dyes, explosives, and other chemical items.

Sulfur finds application in oil and gas refining processes, as well as in paper, textile, and plastic production. It is effective in surface treatment of metals, wood preservation, and acts as a preservative in the food industry.

With its high chemical stability and extended shelf life, sulfur readily dissolves in select organic solvents like benzene and toluene, making it a valuable raw material for the synthesis of other sulfur compounds.

Physico-chemical properties and components

• Granule shape - hemispherical
• Mass fraction of granules with a diameter of 2.0 - 7.0 mm, % - not less than 90.0
• Bulk density, g/сm3 - 1, 1 ÷ 1,3
• Mass fraction of sulfur, % - not less than 99,98
• Mass fraction of ash, % - not more than 0,02
• Mass fraction of organic substances, % - not more than 0,01
• Mass fraction of acids in terms of sulfuric acid, % - not more than 0,0015
• Mass fraction of water, % - not more than 0,2
• Mechanical contamination (paper, wood, sand, etc.), % - Not permittied

Potassium salt fertilizer is a mineral fertilizer characterized by its high potassium content, essential for enhancing the immunity and nutrient levels of various crops. It is particularly suitable for plants tolerant to chlorine. This fertilizer readily dissolves in water and is typically available in the form of pink granules. Potash fertilizers play a crucial role in reducing nitrate and radionuclide intake by plants, facilitating improved nitrogen absorption, protein synthesis, and other vital physiological processes.