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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.
Triple point: 113.55K (–159.8 °C), 0.019483 Pa Critical point: 408.7 K (134.4 °C), 3655 kPa Std enthalpy change of fusion, Δ fus H o: 4.59 kJ/mol Std entropy change of fusion, Δ fus S o: 39.92 J/(mol·K) Std enthalpy change of vaporization, Δ vap H o: 21.3 kJ/mol Std entropy change of vaporization, Δ vap S o: 81.46 J/(mol·K) Solid ...
This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
In the 20th century, the Braun company of Germany made a cordless hair styling device product that used butane as its heat source to produce steam. [29] As fuel, butane is often mixed with small amounts of mercaptans to give the unburned gas an offensive smell easily detected by the human nose. In this way, butane leaks can easily be identified.
The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid [1] [2] and the liquid changes into a vapor. The boiling point of a liquid varies depending upon the surrounding environmental pressure.
How often these products are used, how much time a person’s hair care routine takes, the temperature of styling tools, hair length, bathroom size and type of ventilation system are all factors ...
A zeotropic mixture, or non-azeotropic mixture, is a mixture with liquid components that have different boiling points. [1] For example, nitrogen, methane, ethane, propane, and isobutane constitute a zeotropic mixture. [2]
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.