Ethyl Tertiary Butyl Ether (ETBE) (ETBE)

A chemical compound produced in a reaction between ethanol and isobutylene (a petroleum-derived by-product of the refining process). ETBE has characteristics superior to other ethers: low volatility, low water solubility, high octane value, and a large reduction in carbon monoxide and hydrocarbon emissions.

An ether similar to MTBE. ETBE is manufactured by reacting ethanol with isobutylene. ETBE has high octane and low volatility characteristics. Used as an oxygenate.