Potassium chloride (KCl) is a naturally occurring mineral salt, primarily obtained from potash deposits and brines. It resembles common salt (sodium chloride) in appearance and taste, though slightly less salty. Potassium chloride is widely used in agriculture as a major source of potassium in fertilizers, which is essential for plant growth, root development, and crop yields. In medicine, it serves as an important electrolyte replenisher, often administered in intravenous fluids to treat low potassium levels in patients. Due to health concerns associated with excessive sodium intake, potassium chloride is also used as a salt substitute in food products. Industrially, it is a raw material for producing other potassium-based compounds and chemicals. Although safe in moderate amounts, excessive ingestion can lead to hyperkalemia, a condition that affects heart function. Its stability and abundance make potassium chloride a valuable resource across industries, from agriculture and healthcare to food and chemical manufacturing.