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- W4230737595 abstract "The decomposition of 2,2,3-trimethylbutane in the presence of O2 in KCl-coated vessels has been studied at 480 and 500 °C over the pressure range 60–500 Torr. At low alkane pressures, where the chain contribution is small, the results are consistent with a simple mechanism comprising reactions (10), (11), (2) and (3). (CH3)3CCH(CH3)2→ t-C4H9+i-C3H7(10), i-C3H7+O2→ C3H6+HO2(11), t-C4H9+O2→ i-C4H8+HO2(2), HO2 [graphic omitted] ½H2O+¾O2(3), From measurements of the i-butene yields, accurate rate constants may be obtained for reaction (10) which, when combined with Tsang's results, give log10(A10/s–1)= 16.46 ± 0.12 and E10= 305.0 ± 1.5 kJ mol–1 over the temperature range 480–925 °C. Following a discussion of the thermo-chemistry of reaction (10) and the value of k–10, values of ΔfH°298(t-Bu)= 37.6 ± 2.0 and ΔfH°298(i-Pr)= 80.8 ± 4.0 kJ mol–1 are recommended, which correspond to D°298(t-Bu—H)= 390.2 ± 2.0 and D°298(i-Pr—H)= 402.5 ± 4.0 kJ mol–1, respectively." @default.
- W4230737595 created "2022-05-11" @default.
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- W4230737595 date "1980-01-01" @default.
- W4230737595 modified "2023-10-17" @default.
- W4230737595 title "Decomposition of 2,2,3-trimethylbutane in the presence of oxygen" @default.
- W4230737595 doi "https://doi.org/10.1039/f19807600825" @default.
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