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Pentane, 2-methyl-

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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Deltafgas-174.3 ± 1.0kJ/molCcbProsen and Rossini, 1945ALS
Quantity Value Units Method Reference Comment
Deltacgas-4157.7 ± 0.96kJ/molCcbProsen and Rossini, 1945Corresponding «DELTA»fgas = -204.2 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
101.34200.Scott D.W., 1974Recommended values were obtained from the consistent correlation scheme for alkanes [ Scott D.W., 1974, 2, Scott D.W., 1974]. This approach gives a better agreement with experimental data than the statistical thermodynamics calculation [ Pitzer K.S., 1946] (see also [ Waddington G., 1949]).; GT
131.88273.15
142.2 ± 0.2298.15
143.01300.
183.51400.
219.83500.
251.04600.
277.40700.
300.41800.
320.08900.
337.231000.
351.871100.
364.841200.
376.561300.
389.111400.
397.481500.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
153.85325.10Waddington G., 1949GT
168.62362.15
184.43402.25
197.23436.20
209.87471.15

Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-204.3 ± 1.0kJ/molCcbProsen and Rossini, 1945ALS
Quantity Value Units Method Reference Comment
liquid290.58J/mol*KN/ADouslin and Huffman, 1946DH
liquid292.5J/mol*KN/AStull, 1937Extrapolation below 90 K, 103.72 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
194.19298.15Ohnishi, Fujihara, et al., 1989DH
193.96298.15Benson and D'Arcy, 1986DH
193.92298.15Benson, D'Arcy, et al., 1984DH
193.84298.15Aicart, Kumaran, et al., 1983DH
193.84298.15Benson, D'Arcy, et al., 1983DH
193.7298.15Douslin and Huffman, 1946T = 13 to 300 K.; DH
198.45298.1Stull, 1937T = 90 to 320 K.; DH

Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Hydrogen + 1-Pentene, 2-methyl- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
Deltar-116.3 ± 0.43kJ/molChydRogers, Crooks, et al., 1987liquid phase
Deltar-115.6 ± 2.2kJ/molChydMolnar, Rachford, et al., 1984liquid phase; solvent: Dioxane

Hydrogen + 2-Pentene, 4-methyl-, (Z)- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
Deltar-116.9 ± 0.38kJ/molChydRogers, Crooks, et al., 1987liquid phase
Deltar-114.kJ/molChydTurner, Nettleton, et al., 1958liquid phase; solvent: Acetic acid

Hydrogen + 2-Pentene, 4-methyl-, (E)- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
Deltar-114.2 ± 0.57kJ/molChydRogers, Crooks, et al., 1987liquid phase
Deltar-110.kJ/molChydTurner, Nettleton, et al., 1958liquid phase; solvent: Acetic acid

2Hydrogen + cis-2-Methyl-1-vinylcyclopropane = Pentane, 2-methyl-

By formula: 2H2 + C6H10 = C6H14

Quantity Value Units Method Reference Comment
Deltar-270. ± 0.4kJ/molChydRoth, Kirmse, et al., 1982liquid phase; solvent: Isooctane

n-Hexane = Pentane, 2-methyl-

By formula: C6H14 = C6H14

Quantity Value Units Method Reference Comment
Deltar-5.44 ± 0.88kJ/molCisoProsen and Rossini, 1941liquid phase; Calculated from «DELTA»Hc

Hydrogen + 1-Pentene, 4-methyl- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
Deltar-126.7 ± 0.43kJ/molChydRogers, Crooks, et al., 1987liquid phase

Hydrogen + 2-Pentene, 2-methyl- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
Deltar-111.6 ± 0.74kJ/molChydRogers, Crooks, et al., 1987liquid phase

Pentane, 2-methyl- = Pentane, 3-methyl-

By formula: C6H14 = C6H14

Quantity Value Units Method Reference Comment
Deltar0.92 ± 0.46kJ/molEqkRoganov, Kabo, et al., 1972gas phase; At 368 K

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D., Heats of combustion and formation of the paraffin hydrocarbons at 25° C, J. Res. NBS, 1945, 263-267. [all data]

Scott D.W., 1974
Scott D.W., Chemical Thermodynamic Properties of Hydrocarbons and Related Substances. Properties of the Alkane Hydrocarbons, C1 through C10 in the Ideal Gas State from 0 to 1500 K. U.S. Bureau of Mines, Bulletin 666, 1974. [all data]

Scott D.W., 1974, 2
Scott D.W., Correlation of the chemical thermodynamic properties of alkane hydrocarbons, J. Chem. Phys., 1974, 60, 3144-3165. [all data]

Pitzer K.S., 1946
Pitzer K.S., The entropies and related properties of branched paraffin hydrocarbons, Chem. Rev., 1946, 39, 435-447. [all data]

Waddington G., 1949
Waddington G., Experimental vapor heat capacities and heats of vaporization of 2-methylpentane, 3-methylpentane, and 2,3-dimethylbutane, J. Am. Chem. Soc., 1949, 71, 3902-3906. [all data]

Douslin and Huffman, 1946
Douslin, D.R.; Huffman, H.M., Low-temperature thermal data on the five isometric hexanes, J. Am. Chem. Soc., 1946, 68, 1704-1708. [all data]

Stull, 1937
Stull, D.R., A semi-micro calorimeter for measuring heat capacities at low temperatures, J. Am. Chem. Soc., 1937, 59, 2726-2733. [all data]

Ohnishi, Fujihara, et al., 1989
Ohnishi, K.; Fujihara, I.; Murakami, S., Thermodynamic properties of decalins mixed with hexane isomers at 298.15K. 1. Excess enthalpies and excess isobaric heat capacities, Fluid Phase Equilib., 1989, 46, 59-72. [all data]

Benson and D'Arcy, 1986
Benson, G.C.; D'Arcy, P.J., Heat capacities of binary mixtures of n-octane with each of the hexane isomers at 298.15 K, Can. J. Chem., 1986, 64, 2139-2141. [all data]

Benson, D'Arcy, et al., 1984
Benson, G.C.; D'Arcy, P.J.; Kumaran, M.K., Heat capacities of binary mixtures of n-heptane with hexane isomers, Thermochim. Acta, 1984, 75, 353-360. [all data]

Aicart, Kumaran, et al., 1983
Aicart, E.; Kumaran, M.K.; Halpin, C.J.; Benson, G.C., Ultrasonic speeds and isentropic compressibilities of 2-methylpentan-1-ol with hexane isomers at 298.15 K, J. Chem. Thermodynam., 1983, 15, 1189-1197. [all data]

Benson, D'Arcy, et al., 1983
Benson, G.C.; D'Arcy, P.J.; Sugamori, M.E., Heat capacities of binary mixtures of 1-hexanol with hexane isomers at 298.15 K, Thermochim. Acta, 1983, 71, 161-166. [all data]

Rogers, Crooks, et al., 1987
Rogers, D.W.; Crooks, E.; Dejroongruang, K., Enthalpies of hydrogenation of the hexenes, J. Chem. Thermodyn., 1987, 19, 1209-1215. [all data]

Molnar, Rachford, et al., 1984
Molnar, A.; Rachford, R.; Smith, G.V.; Liu, R., Heats of hydrogenation by a simple and rapid flow calorimetric method, Appl. Catal., 1984, 9, 219-223. [all data]

Turner, Nettleton, et al., 1958
Turner, R.B.; Nettleton, J.E.; Perelman, Heats of Hydrogenation. VI. Heats of hydrogenation of some substituted ethylenes, J. Am. Chem. Soc., 1958, 80, 1430-1433. [all data]

Roth, Kirmse, et al., 1982
Roth, W.R.; Kirmse, W.; Hoffmann, W.; Lennartz, H.W., Heats of hydrogenation. III. Effect of fluoro substituents on the thermal rearrangement of cyclopropane systems, Chem. Ber., 1982, 115, 2508-2515. [all data]

Prosen and Rossini, 1941
Prosen, E.J.R.; Rossini, F.D., Heats of isomerization of the five hexanes, J. Res. NBS, 1941, 27, 289-310. [all data]

Roganov, Kabo, et al., 1972
Roganov, G.N.; Kabo, G.Ya.; Andreevskii, D.N., Thermodynamics of the isomerization of methylpentanes and methylheptanes, Neftekhimiya, 1972, 12, 495-500. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References