Chloroethane, also known as ethyl chloride, is a colorless gas at room temperature with a sweet odor. It is primarily used as a solvent and in the production of other chemicals. Chloroethane is also utilized in the medical field as a local anesthetic and in cryotherapy to freeze and remove skin lesions. This compound is produced through the reaction of ethanol with hydrochloric acid. Chloroethane is classified as a volatile organic compound (VOC) and can contribute to air pollution. Safety precautions are necessary when handling it, as it can be harmful if inhaled or absorbed through the skin.