Ammonium sulfate (NH₄)₂SO₄ is an inorganic salt, appearing as a white, odorless crystalline powder that dissolves easily in water. It is produced by reacting ammonia with sulfuric acid and is widely used in agriculture and industry.

🔬 Chemical & Physical Properties:

• Molecular weight: 132.14 g/mol
• Solubility in water: 76 g/100 ml at 25°C, up to 102 g/100 ml at 100°C
• Melting point: 235–280°C (decomposes)
• Hygroscopic: Low
• Density: 1.77 g/cm³

🌱 Agricultural Use:

Crystalline ammonium sulfate is a nitrogen-sulfur fertilizer containing:

• 21% nitrogen (as ammonium NH₄⁺)
• 23–24% sulfur (as sulfate SO₄²⁻)

These nutrients are essential for:

• Stimulating plant growth
• Increasing crop yields
• Enhancing the uptake of phosphorus and trace elements
• Acidifying alkaline and neutral soils for better nutrient availability

🔹 Common Applications:

• Field crops: wheat, corn, sunflower, rapeseed
• Vegetables and fruit trees
• Greenhouses and garden use
• Industrial uses: water treatment, food additives, textiles