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[ahy-suh-byoot-l-een] /ˌaɪ səˈbyut lˌin/
noun, Chemistry
a colorless, very volatile liquid or flammable gas, C 4 H 8 , used chiefly in the manufacture of butyl rubber.
Also, isobutene
[ahy-suh-byoo-teen] /ˌaɪ səˈbyu tin/ (Show IPA)
Origin of isobutylene
1870-75; iso- + butylene Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for isobutylene
  • Frequently, isobutylene gas in air is used as a calibration gas.
  • The meter can then be used to read directly in isobutylene units.
  • Again the main products are acetone, isobutylene and aromatics.
  • isobutylene is separated from n-butane which is later used in the manufacturing of butadiene.

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