Potassium sulfate

CAS: 7778-80-5

Description:
A crystalline powder available in white, yellowish, gray, or brownish shades, exhibiting excellent water solubility and resistance to hydrolysis. Chemically reactive with both acids and alkalis, this inorganic salt readily forms double salts and alum-type compounds, making it a versatile intermediate for industrial and agricultural applications.

Key Uses:
  • Agriculture & Soil Fertilization. Primarily valued as a highly effective chloride-free potassium fertilizer, ideal for chloride-sensitive crops such as tobacco, grapes, potatoes, and certain fruits. Supports robust plant growth, improves yield quality, and enhances resistance to environmental stress without risking soil salinization.
  • Glass Manufacturing. Integrated into specialty glass formulations to improve clarity, thermal stability, and chemical durability, particularly in optical, laboratory, and high-performance glass products.
  • Metallurgical Processing. Employed as a fluxing agent in metal refining and alloy production, helping to lower melting temperatures, facilitate impurity removal, and optimize smelting efficiency for non-ferrous metals.
  • Chemical Synthesis & Specialty Compounds. Serves as a foundational raw material for producing double salts, potassium alums, and other value-added chemicals used in water treatment, dyeing, and industrial catalysis.