Dodecane

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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
Δfgas-69.52 ± 0.34kcal/molCcbProsen and Rossini, 1945ALS
Δfgas-68.85 ± 0.78kcal/molCcbProsen and Rossini, 1945, 2Heat of formation derived by Cox and Pilcher, 1970; ALS
Quantity Value Units Method Reference Comment
gas148.78cal/mol*KN/AStull D.R., 1969This value is based on the low-temperature results [ Finke H.L., 1954] for S(liquid).; GT

Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
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
Tboil489. ± 2.KAVGN/AAverage of 22 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus263.5 ± 0.3KAVGN/AAverage of 35 out of 45 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple263.57 ± 0.05KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tc658.2 ± 0.9KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Pc18.0 ± 1.atmN/AAmbrose and Tsonopoulos, 1995 
Pc17.86atmN/ARosenthal and Teja, 1989Uncertainty assigned by TRC = 0.20 atm; TRC
Pc18.10atmN/ATeja, Lee, et al., 1989TRC
Pc18.36atmN/APak and Kay, 1972Uncertainty assigned by TRC = 0.1360 atm; corrected for vapor pressure of Hg, and extrapolated to zero time to correct for decomposition; TRC
Pc18.00atmN/AAmbrose and Townsend, 1968Uncertainty assigned by TRC = 0.099 atm; TRC
Quantity Value Units Method Reference Comment
Vc0.754l/molN/AAmbrose and Tsonopoulos, 1995 
Quantity Value Units Method Reference Comment
ρc1.3 ± 0.1mol/lN/AAmbrose and Tsonopoulos, 1995 
ρc1.33mol/lN/AAnselme, Gude, et al., 1990Uncertainty assigned by TRC = 0.04 mol/l; TRC
Quantity Value Units Method Reference Comment
Δvap14.6 ± 0.2kcal/molAVGN/AAverage of 12 values; Individual data points
Quantity Value Units Method Reference Comment
Δsub23.95kcal/molBMorawetz, 1972AC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
14.7299.CViton, Chavret, et al., 1996AC
13.9334.CViton, Chavret, et al., 1996AC
13.7344.CViton, Chavret, et al., 1996AC
15.7278.N/ASasse, Jose, et al., 1988Based on data from 263. to 371. K.; AC
14.8293.AStephenson and Malanowski, 1987Based on data from 278. to 400. K.; AC
12.3415.A,MMStephenson and Malanowski, 1987Based on data from 400. to 492. K. See also Willingham, Taylor, et al., 1945.; AC
14.6313.GSAllemand, Jose, et al., 1986Based on data from 298. to 389. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference
399.53 to 490.494.099781625.928-92.839Williamham, Taylor, et al., 1945

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
24.31263.BBondi, 1963AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Method Reference Comment
8.8040263.59N/AFinke, Gross, et al., 1954DH
8.53263.1DSCMondieig, Rajabalee, et al., 2004AC
8.800263.6N/ADomalski and Hearing, 1996AC
8.7431263.5N/AHuffman, Parks, et al., 1931DH

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
33.401263.59Finke, Gross, et al., 1954DH
33.17263.5Huffman, Parks, et al., 1931DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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

1-Dodecene + Hydrogen = Dodecane

By formula: C12H24 + H2 = C12H26

Quantity Value Units Method Reference Comment
Δr-29.98 ± 0.35kcal/molChydRogers and Skanupong, 1974liquid phase; solvent: Hexane
Δr30.05 ± 0.50kcal/molChydBretschneider and Rogers, 1970liquid phase; solvent: glacial acetic acid

Dodecane = Heptane, 2,2,4,6,6-pentamethyl-

By formula: C12H26 = C12H26

Quantity Value Units Method Reference Comment
Δr-3.04kcal/molCcbMelaugh, Mansson, et al., 1976liquid phase; Unpublished results of Zwolinski and Desai
Δr-2.91 ± 0.33kcal/molCcbMelaugh, Mansson, et al., 1976liquid phase

4Hydrogen + 3,9-Dodecadiyne = Dodecane

By formula: 4H2 + C12H18 = C12H26

Quantity Value Units Method Reference Comment
Δr-131.2 ± 0.5kcal/molChydFlitcroft, Skinner, et al., 1957liquid phase

5,7-Dodecadiyne + 4Hydrogen = Dodecane

By formula: C12H18 + 4H2 = C12H26

Quantity Value Units Method Reference Comment
Δr-127.3 ± 0.7kcal/molChydFlitcroft, Skinner, et al., 1957liquid phase

Dodecane + Sulfuric Acid = C12H26O3S + Water

By formula: C12H26 + H2O4S = C12H26O3S + H2O

Quantity Value Units Method Reference Comment
Δr69.3 ± 4.0kcal/molCmRoth and Rist-Schumacher, 1944liquid phase

Gas phase ion energetics 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: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6H12+10.40?EILewis and Hamill, 1970 

IR Spectrum

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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IR spectrum
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Additional Data

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Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Sadtler Research Labs Under US-EPA Contract
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, References, Notes

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

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Due to licensing restrictions, this spectrum cannot be downloaded.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1998.
NIST MS number 291499

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


Gas Chromatography

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Lee's RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-5MS200.12Chen, Keeran, et al., 200230. m/0.25 mm/0.5 μm, 40. C @ 1. min, 10. K/min; Tend: 310. C
CapillaryDB-5MS202.83Chen, Keeran, et al., 200230. m/0.25 mm/0.5 μm, 40. C @ 1. min, 4. K/min; Tend: 310. C
CapillaryDB-1209.9Johnson, Urso, et al., 199730. m/0.2 mm/0.25 μm, 50. C @ 2. min, 5. K/min, 300. C @ 5. min

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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]

Prosen and Rossini, 1945, 2
Prosen, E.J.; Rossini, F.D., Heats of formation and combustion of 1,3-butadiene and styrene, J. Res. NBS, 1945, 34, 59-63. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Stull D.R., 1969
Stull D.R., Jr., The Chemical Thermodynamics of Organic Compounds. Wiley, New York, 1969. [all data]

Finke H.L., 1954
Finke H.L., Low-temperature thermal data for the nine normal paraffin hydrocarbons from octane to hexadecane, J. Am. Chem. Soc., 1954, 76, 333-341. [all data]

Ambrose and Tsonopoulos, 1995
Ambrose, D.; Tsonopoulos, C., Vapor-Liquid Critical Properties of Elements and Compounds. 2. Normal Alkenes, J. Chem. Eng. Data, 1995, 40, 531-546. [all data]

Rosenthal and Teja, 1989
Rosenthal, D.J.; Teja, A.S., The Critical Properties of n-Alkanes Using a Low-Residence Time Flow Apparatus, AIChE J., 1989, 35, 1829. [all data]

Teja, Lee, et al., 1989
Teja, A.S.; Lee, R.J.; Rosenthal, D.J.; Anselme, M.J., Correlation of the Critical Properties of Alkanes and Alkanols in 5th IUPAC Conference on Alkanes and AlkanolsGradisca, 1989. [all data]

Pak and Kay, 1972
Pak, S.C.; Kay, W.B., Gas-Liquid Critical Temperatures of Mixtures. Benzene + n-Alkanes and Hexafluorobenzene + n-Alkanes, Ind. Eng. Chem. Fundam., 1972, 11, 255. [all data]

Ambrose and Townsend, 1968
Ambrose, D.; Townsend, R., Critical Temperatures and Pressures of Some Alkanes, Trans. Faraday Soc., 1968, 64, 2622. [all data]

Anselme, Gude, et al., 1990
Anselme, M.J.; Gude, M.; Teja, A.S., The Critical Temperatures and Densities of the n-Alkanes from Pentane to Octadecane, Fluid Phase Equilib., 1990, 57, 317-26. [all data]

Morawetz, 1972
Morawetz, Ernst, Correlation of sublimation enthalpies at 298.15 K with molecular structure for planar aromatic hydrocarbons, The Journal of Chemical Thermodynamics, 1972, 4, 3, 461-467, https://doi.org/10.1016/0021-9614(72)90030-4 . [all data]

Viton, Chavret, et al., 1996
Viton, C.; Chavret, M.; Jose, J., Enthalpies of vaporization of normal alkanes from nonane to pentadecane at temperatures from 298 to 359 K, ELDATA: Int. Electron. J. Phys. Chem. Data, 1996, 2, 3, 103. [all data]

Sasse, Jose, et al., 1988
Sasse, Karim; Jose, Jacques; Merlin, Jean-Claude, A static apparatus for measurement of low vapor pressures. Experimental results on high molecular-weight hydrocarbons, Fluid Phase Equilibria, 1988, 42, 287-304, https://doi.org/10.1016/0378-3812(88)80065-7 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D., Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons, J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009 . [all data]

Allemand, Jose, et al., 1986
Allemand, Nadine; Jose, Jacques; Merlin, J.C., Mesure des pressions de vapeur d'hydrocarbures C10 A C18n-alcanes etn-alkylbenzenes dans le domaine 3-1000 pascal, Thermochimica Acta, 1986, 105, 79-90, https://doi.org/10.1016/0040-6031(86)85225-X . [all data]

Williamham, Taylor, et al., 1945
Williamham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D., Vapor Pressures and Boiling Points of Some Paraffin, Alkylcyclopentane, Alkylcyclohexane, and Alkylbenzene Hydrocarbons, J. Res. Natl. Bur. Stand. (U.S.), 1945, 35, 3, 219-244, https://doi.org/10.6028/jres.035.009 . [all data]

Bondi, 1963
Bondi, A., Heat of Siblimation of Molecular Crystals: A Catalog of Molecular Structure Increments., J. Chem. Eng. Data, 1963, 8, 3, 371-381, https://doi.org/10.1021/je60018a027 . [all data]

Finke, Gross, et al., 1954
Finke, H.L.; Gross, M.E.; Waddington, G.; Huffman, H.M., Low-temperature thermal data for the nine normal paraffin hydrocarbons from octane to hexadecane, J. Am. Chem. Soc., 1954, 76, 333-341. [all data]

Mondieig, Rajabalee, et al., 2004
Mondieig, D.; Rajabalee, F.; Metivaud, V.; Oonk, H.A.J.; Cuevas-Diarte, M.A., n -Alkane Binary Molecular Alloys, Chem. Mater., 2004, 16, 5, 786-798, https://doi.org/10.1021/cm031169p . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M., Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons, J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]

Rogers and Skanupong, 1974
Rogers, D.W.; Skanupong, S., Heats of hydrogenation of sixteen terminal monoolefins. The alternating effect, J. Phys. Chem., 1974, 78, 2569-2572. [all data]

Bretschneider and Rogers, 1970
Bretschneider, E.; Rogers, D.W., A new microcalorimeter: heats of hydrogenation of four monoolefins, Mikrochim. Acta, 1970, 482-490. [all data]

Melaugh, Mansson, et al., 1976
Melaugh, R.A.; Mansson, M.; Rossini, F.D., The energy of isomerization of n-dodecane into 2,2,4,6,6-pentamethylheptane, J. Chem. Thermodyn., 1976, 8, 623-626. [all data]

Flitcroft, Skinner, et al., 1957
Flitcroft, T.; Skinner, H.A.; Whiting, M.C., Heats of hydrogenation Part 1.-Dodeca-3:9 and -5:7 Diynes, Trans. Faraday Soc., 1957, 53, 784-790. [all data]

Roth and Rist-Schumacher, 1944
Roth, W.A.; Rist-Schumacher, E., Beitrag zur thermochemie der sulfonsauren und saurechlorid, Z. Electrochem., 1944, 50, 7-9. [all data]

Lewis and Hamill, 1970
Lewis, D.; Hamill, W.H., Excited states of neutral molecular fragments from appearance potentials by electron impact in a mass spectrometer, J. Chem. Phys., 1970, 52, 6348. [all data]

Chen, Keeran, et al., 2002
Chen, P.H.; Keeran, W.S.; Van Ausdale, W.A.; Schindler, D.R.; Roberts, D.W., Application of Lee retention indices to the confirmation of tentatively identified compounds from GC/MS analysis of environmental samples, Technical paper, Analytical Services Division, Environmental ScienceEngineering, Inc, PO Box 1703, Gainesville, FL 32602, 2002, 11. [all data]

Johnson, Urso, et al., 1997
Johnson, C.I.; Urso, A.; Geleta, L., Broad spectrum analysis of municipal and industrial effluents discharged into the Peace, Athabasca and Slave river basins: characterization of effluent samples, 1994 - Volume 1 of 2, Northern River Basins Study Project Report No. 121, Norther River Basins Study, Edmonton, Alberta, 1997, 27. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References