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Isobutane is the principal feedstock in alkylation units of refineries. Using isobutane, gasoline-grade "blendstocks" are generated with high branching for good combustion characteristics. Typical products created with isobutane are 2,4-dimethylpentane and especially 2,2,4-trimethylpentane. [7] Typical acid-catalyzed route to 2,4-dimethylpentane.
The molecular formula C 4 H 10 (molar mass: 58.12 g/mol, exact mass: 58.0783 u) may refer to: Butane , or n -butane Isobutane , also known as methylpropane or 2-methylpropane
The isobutane feed to an alkylation unit can be either low or high purity. Low purity makeup isobutane feedstock (typically < 70% vol isobutane) usually originates from the refinery (mainly from the reformer) and need to be processed in the deisobutanizer (DIB). High purity feedstock (> 95% vol isobutane) normally originates from an external De ...
C 4 H 4 isomers with CAS registry numbers. Hydrocarbons that include four atoms are: butane C 4 H 10; isobutane C 4 H 10; but-1-ene C 4 H 8; but-2-ene C 4 H 8; but-1-yne C 4 H 6; but-2-yne C 4 H 6; isobutylene C 4 H 8; butadiene C 4 H 6; 1,2-butadiene C 4 H 6; vinylacetylene C 4 H 4; diacetylene C 4 H 2; butatriene C 4 H 4; cyclobutane C 4 H 8 ...
By spraying butane directly into the throat, the jet of fluid can cool rapidly to −20 °C (−4 °F) by expansion, causing prolonged laryngospasm. [37] " Sudden sniffer's death" syndrome, first described by Bass in 1970, [ 38 ] is the most common single cause of solvent related deaths, resulting in 55% of known fatal cases.
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A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.