Potassium sulfate is a chemical compound with the formula K₂SO₄. It consists of potassium, sulfur, and oxygen, and is commonly used as a fertilizer in agriculture. This compound provides essential nutrients to plants, particularly potassium and sulfur, which are vital for their growth and development. In addition to its agricultural uses, potassium sulfate is also utilized in various industrial applications, such as in the production of glass and as a food additive. It is known for being soluble in water, making it easy to apply in different forms, including granules and liquid solutions.