Potassium Sulphate (K2SO4) also known as sulfate of potash, arcanite, or archaically known as potash of sulfur) is a white crystalline, non-flammable salt soluble in water. The chemical compound is commonly used in fertilizers, providing both potassium and sulfur. The main nutrients of potassium sulfate are potassium and sulfur, both of which are the main nutrient elements for plant growth and development, and play an important role.

