Potassium Sulphate

Potassium Sulphate Fertilizer
Potassium Sulphate Fertilizer
Molecular Wt.  174.2 g/mol
Assay (titr.)Min 94 %
AppearanceWhite Crystalline Powder
Potassium as K2OMin 50%
Sulphur as SO4Min 18%
pH of 10% Solution5-7
MoistureMax 1%
Solubility in WaterMin 99%


Potassium sulphate Fertilizer (K₂SO₄) is a naturally occurring mineral and versatile industrial compound with a wide range of applications. Here’s a closer look at its key characteristics and uses:

Appearance: Potassium sulphate Fertilizer typically appears as white or colorless crystals or powder, though it can also be found in a granular form. It’s odorless and has a slightly salty taste.

Chemical Properties: Potassium sulphate Fertilizer is a highly soluble compound, readily dissolving in water. It’s also known for its excellent thermal stability and conductivity.


  • Fertilizer: Potassium sulphate is a valuable fertilizer source, providing essential potassium for plant growth and development. It’s particularly beneficial for crops like fruits, vegetables, and tobacco that require high levels of potassium.
  • Food Processing: Potassium sulphate finds its way into various food products as a processing aid or acidity regulator. It’s also used in baking, brewing, and the production of dried fruits and vegetables.
  • Cosmetics & Pharmaceuticals: Potassium sulphate plays a role in various cosmetic and pharmaceutical formulations. It can act as a thickener, emulsifier, or electrolyte depending on the application.
  • Textile Industry: Potassium sulphate contributes to the dyeing and finishing processes of textiles, enhancing color fastness and fabric quality.
  • Other Uses: Potassium sulfate also finds applications in water treatment, glass and ceramic production, and the construction industry.


In Agriculture :

  • Enhances Plant Growth and Yield: Potassium sulphate fertilizer provides essential potassium and sulfur for healthy plant development. Potassium strengthens stems and roots, regulates water uptake, and aids in photosynthesis, leading to improved fruit and vegetable yield and overall quality.
  • Boosts Stress Tolerance: Potassium sulphate fertilizer helps plants withstand environmental stresses like drought, cold, and heat. It promotes efficient water utilization and strengthens their immune system, making them more resilient to diseases and pests.
  • Lowers Salt Impact: Unlike potassium chloride, a common alternative, potassium sulfate doesn’t contribute to soil salinity issues. This is particularly beneficial for sensitive crops and soils with naturally high salt levels.
  • Provides Additional Sulfur: Compared to other potassium sources, potassium sulfate offers the added benefit of sulfur, another essential nutrient for plant growth and enzyme function. This contributes to protein synthesis and enhances crop quality.

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