Dichloroethanes are a group of chemical compounds that contain two chlorine atoms attached to an ethane molecule. The most common form is 1,2-dichloroethane, which is a colorless liquid with a sweet odor. These compounds are primarily used as solvents in industrial applications and as intermediates in the production of other chemicals. Dichloroethanes can be harmful to human health and the environment. They are classified as hazardous air pollutants and can cause respiratory issues and skin irritation upon exposure. Proper handling and disposal are essential to minimize their impact on health and the ecosystem.