Potassium Sulfate (SOP) 50% K₂O – Chloride-Free Fertilizer

Potassium Sulfate (K₂SO₄), also known as Sulfate of Potash (SOP), is a high-purity chloride-free fertilizer widely used in global agriculture. It contains 50% K₂O and 18% sulfur, and because of this balanced composition, it provides essential nutrients that support crop growth, improve final yield, and enhance product quality. Since SOP has no chloride, it is particularly suitable for crops that are sensitive to salinity and require clean, low-EC potassium sources.

Basekim supplies premium-grade Potassium Sulfate from UAE, Turkey, and China. We provide consistent quality, flexible packaging, and fast global delivery. As a result, buyers who require reliable fertilizer supply choose SOP from Basekim for large-scale agriculture, greenhouses, and specialty crop production.

Benefits of Potassium Sulfate (SOP)

Potassium Sulfate offers several key advantages, and each of them directly supports crop performance.
Because it contains no chloride, it is an ideal fertilizer for crops that may react negatively to chloride-based products.
In addition, SOP provides sulfur, which improves nutrient absorption and protein formation.
The following benefits make SOP one of the most preferred potassium fertilizers:

• Because it is chloride-free, it prevents toxicity in sensitive crops.

• In addition, it is suitable for greenhouse farming and high-value fruit production.

• Moreover, its lower salt index compared with MOP helps protect soil structure.

• As a result, it improves sugar content, flavor, firmness, and visual quality of fruits.

• Finally, it supports sustainable farming practices, especially in saline and arid regions.

These features make SOP a reliable choice for growers who need consistent performance and high crop quality.

Applications of Potassium Sulfate (SOP)

Potassium Sulfate is used in both agricultural and industrial sectors. Because of its purity and balanced nutrient profile, it fits a wide range of farming systems.

Agricultural Applications

SOP is recommended for several types of crops, particularly those that are sensitive to chloride. It is widely used for:

• Grapes, citrus, apples, strawberries, and other fruit crops

• Potatoes, onions, and root vegetables

• Pistachio, almond, coffee, cocoa, and tea

• Greenhouse vegetables such as cucumber, tomato, and pepper

• Hydroponics, fertigation, and drip irrigation systems

• Export-oriented farms where crop appearance and taste are essential

• Agricultural regions with saline soils or hard-water conditions

Because SOP is fully soluble in water, it performs well in modern irrigation systems and controlled-environment agriculture.

Industrial Applications

Although SOP is primarily used in agriculture, it is also applied in several industrial processes. These include:

• Glass and crystal manufacturing

• Pharmaceutical and food-grade formulations

• Powder detergents and cleaning products

• Specialty chemicals and water-treatment processes

• Metal finishing and electroplating solutions

Its stability, purity, and non-corrosive nature make it suitable for these applications.

Technical Specifications

Potassium Sulfate supplied by Basekim meets international standards. The typical specifications include:

• Chemical Formula: K₂SO₄

• K₂O Content: 50% minimum

• Sulfur (S): 18% minimum

• Chloride: less than 1.5%

• Moisture: less than 1%

• Water Solubility: fully soluble

• Appearance: white powder or granular

• Particle Size: powder or 1–4 mm granules

• pH (10% solution): 5–8

• HS Code: 31043000

These characteristics ensure stable performance in different soil and climate conditions.

SOP vs MOP (Potassium Chloride)

Many buyers compare SOP with MOP. Although MOP is widely available, it contains chloride and has a higher salt index. Because of this, MOP may harm sensitive crops or reduce fruit quality. SOP, on the other hand, is always preferred when:

• Crop quality is a priority

• Chloride sensitivity is a concern

• Salinity issues reduce crop performance

• Greenhouse and hydroponic systems are used

• Export-grade fruits and vegetables are produced

For these reasons, buyers in Europe, the Middle East, Africa, and Asia increasingly choose SOP for advanced farming systems.

Why Buyers Choose Basekim

Basekim provides high-purity SOP with consistent supply and professional service. Our product is sourced from UAE, Turkey, and China, and we deliver to major global ports. Furthermore, we support customers with COA, MSDS, and full documentation for smooth import procedures.

Our advantages include:

• Reliable supply from multiple origins

• Competitive FOB, CFR, and CIF prices

• Packaging options: 25 kg, 50 kg, and 1 MT jumbo bags

• Fast dispatch from Mersin, Jebel Ali, Qingdao, and other key ports

• Dedicated support for agricultural distributors and fertilizer importers

Because of our strong logistics network, we guarantee timely shipment and consistent product availability.