Chloroethane, also known as ethyl chloride, is a colorless gas at room temperature with a sweet odor. It is primarily used as a refrigerant and in the production of other chemicals. In the medical field, chloroethane is sometimes used as a local anesthetic to numb the skin before minor procedures. This compound is made by reacting ethanol with hydrochloric acid. While it has useful applications, chloroethane can be harmful if inhaled in large amounts, leading to dizziness or respiratory issues. Therefore, it is important to handle it with care and use proper safety equipment when working with it.