The best known form of what class of organic compounds consists of two ethyl groups bound to an oxygen that, FTP, was once used as an anesthetic?
They include coedine as well as the gasoline additive MTBE.  They readily form azeotropes, their salts are oxonium compounds, and they can be made by the hydration of olefins or dehydration of alcohols. The best known form of what class of organic compounds consists of two ethyl groups bound to an oxygen that, FTP, was once used as an anesthetic?
They include coedine as well as the gasoline additive MTBE.  
ethers