单词	isobutylene
释义	isobutylene noun iso·​bu·​tyl·​ene ˌī-sō-ˈbyü-tə-ˌlēn  : a gaseous butylene C4H8 used especially in making butyl rubber and gasoline components Example Sentences Recent Examples on the Web Enterprise already is building a isobutane dehydrogenation plant in Mont Belvieu to create isobutylene that's used to make lubricants, rubber products, gasoline components and more. Jordan Blum, Houston Chronicle, 9 Jan. 2018 The trailers were moved to the highest ground on the property, and as far as possible from tanks of sulfur dioxide, a highly corrosive gas, and isobutylene, a highly flammable one. Clifford Krauss, Hiroko Tabuchi And Henry Fountain, New York Times, 5 Sep. 2017 The company also reported at the time that 25 people living within 0.4 mile of the plant were at risk from isobutylene in the event of a fire. Alexandra Berzon And Christopher M. Matthews, WSJ, 31 Aug. 2017 The plant stores other hazardous chemicals, including sulfur dioxide and isobutylene. Clifford Krauss, Hiroko Tabuchi And Henry Fountain, New York Times, 5 Sep. 2017 Only sulfur dioxide and another substance, methylpropene, also called isobutylene, were present in high enough quantities at the Crosby plant to meet the EPA’s minimum threshold for requiring a risk-management plan. Alexandra Berzon And Christopher M. Matthews, WSJ, 31 Aug. 2017 Word History Etymology International Scientific Vocabulary First Known Use 1872, in the meaning defined above
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