Assertion: tert butyl alcohol | /r/AtLocation | gasoline
Facets:
value: to improve antiknock characteristics
type: PURPOSE
Source sentences:
text: Tert-Butyl alcohol can be added to gasoline to improve antiknock characteristics and anti-freezing characteristics or can be used not only as a starting material for producing high purity isobutylene when dehydrated but also as a starting material for producing methyl methacrylate by a vapor phase catalytic oxidation process by itself or in the form of aqueous solution thereof.