Potassium Sulphate (K₂SO₄)

Potassium Sulphate (K₂SO₄), also known as Sulfate of Potash (SOP), is a premium, chloride-free fertilizer ideal for high-value crops such as fruits, vegetables, tobacco, and coffee. With a potassium content of 50% K₂O and 18% sulfur, it enhances crop yield and quality while improving resistance to drought and disease.

At MDNR Resource, our Potassium Sulphate is produced through both Mannheim furnace process and reactive crystallization from potassium chloride and sulfuric acid. This ensures low-chloride, high-solubility SOP tailored for professional agriculture.

Available in granular or powder form, our SOP is delivered in export-grade packaging with consistent global supply capability.

1. Mannheim Process

• Potassium chloride reacts with sulfuric acid in a furnace

• The byproduct hydrochloric acid is removed

• The remaining product is cooled and granulated

2. Crystallization Process

• Reacts potassium chloride with sulfuric acid in solution

• Crystals of potassium sulphate form and are harvested

• Final product is dried and screened

• 25kg and 50kg woven PP bags

• 1000kg jumbo bags for bulk orders

• Palletized or containerized shipping available

🌾 Agriculture

• Fertilizer for chloride-sensitive crops (e.g., tobacco, fruits, potatoes, grapes)

• Enhances yield, flavor, color, and drought resistance

🏭 Industrial

• Used in glass manufacturing, synthetic rubber, and explosives

• Additive in pharmaceuticals and specialty chemicals

• 🧂 Chloride-Free: Ideal for sensitive crops that require low salinity

• 💪 Boosts Plant Health: Improves resistance to stress and enhances nutrient uptake

• 🌱 Dual Nutrient Supply: Provides both potassium and sulfur

• 📈 High Crop Quality: Enhances taste, color, and storability of produce

• 🚢 Global Supply Ready: Consistent stock and export logistics

1. Is Potassium Sulphate safe for all crops?

Answer:
Yes, especially for chloride-sensitive crops. It provides essential potassium and sulfur without the harmful effects of chloride.

2. What’s the difference between SOP and MOP fertilizers?

Answer:
SOP (Potassium Sulphate) contains no chloride, making it ideal for sensitive crops. MOP (Potassium Chloride) is cheaper but contains high chloride levels, which may harm certain plants.

3. Can I mix SOP with other fertilizers or agrochemicals?

Answer:
Yes, SOP is compatible with most fertilizers and can be used in fertigation, foliar sprays, and direct soil application.

4. Do you offer SGS or third-party analysis with the product?

Answer:
Yes, we provide SGS certification, COA, and MSDS with every shipment upon request.

• ICIS – Potassium Sulphate Market Analysis

• FAO – Fertilizer Use and Benefits

• PubChem – Potassium Sulphate (K₂SO₄)

• AgFertilizer.org – SOP vs MOP