Used primarily as a blowing agent in the production of expanded polystyrene (EPS) and extruded polystyrene (XPS) foams for insulation in construction and packaging. Also serves as a carrier solvent in adhesives, coatings, and cleaning formulations due to its low boiling point and volatility. Commonly employed as a low-cost, non-polar solvent in laboratories for liquid-liquid extraction and chromatography. In the oil and gas industry, it is used in refining processes and as a component in calibration gas mixtures. Additionally, it functions as a refrigerant in some refrigeration systems and as a fuel component in specialty lighters and camping stoves.