Tetrahydrofuran (THF) is a clear, colorless, and highly volatile liquid with a characteristic ether-like odor. It is a cyclic ether and a versatile organic solvent widely used in industrial and laboratory settings. THF is particularly valued for its ability to dissolve a wide range of polar and non-polar compounds, making it essential in the production of plastics, coatings, and adhesives. It is also a key solvent in polymer chemistry, especially in the manufacture of polyvinyl chloride (PVC) and polyurethane. Due to its high flammability and tendency to form explosive peroxides, THF must be handled with care under controlled conditions.