Methyl tert-butyl ether is a flammable liquid with a distinctive unpleasant odour. It is made from a blend of chemicals such as isobutylene and methanol, and has been used since the 1980s as an additive in unleaded gasoline for more efficient combustion. Methyl tert-butyl ether is also used to dissolve gallstones. Patients treated in this way have Methyl tert-butyl ether delivered directly to their gallbladder through a special tube inserted surgically.

Toxic Substances and Disease Registry (ATSDR)

Methyl tert-butyl ether is a colorless liquid with a distinctive anesthetic-like odor. Vapors are heavier than air and are narcotic. Boiling point 131°F. Flash point 18°F. Density is lower than water, easily soluble in water. Used as an octane booster in gasoline.

Methyl tert-butyl ether is an ether having methyl and tert-butyl groups as the two alkyl components. It functions as a non-polar solvent, fuel additive and metabolite.

Methyl tert-butyl ether (MTBE), also known as methyl tert-butyl ether, methyl tert-butyl ether, is an organic compound with a structural formula of (CH3)3COCH3. Methyl tert-butyl ether is a volatile, flammable, colorless liquid that is slightly soluble in water [1]. Methyl tert-butyl ether is primarily used as a fuel additive and can be blended into gasoline to increase its octane rating and anti-knock properties, as well as reduce harmful emissions.