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1-Heptene

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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
Tboil367. ± 3.KAVGN/AAverage of 45 out of 46 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus153. ± 3.KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple154.30KN/AMcCullough, Finke, et al., 1957Crystal phase 1 phase; Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple153.89KN/AMcCullough, Finke, et al., 1957Metastable crystal phase; Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple153.4KN/AParks, Todd, et al., 1936Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Tc537.3 ± 0.4KN/ATsonopoulos and Ambrose, 1996 
Tc537.23KN/AAmbrose, Cox, et al., 1960Uncertainty assigned by TRC = 0.05 K; Visual, PRT, IPTS-48, with decomp.; TRC
Quantity Value Units Method Reference Comment
Pc29.2 ± 0.4barN/ATsonopoulos and Ambrose, 1996 
Quantity Value Units Method Reference Comment
Vc0.409l/molN/ATsonopoulos and Ambrose, 1996 
Quantity Value Units Method Reference Comment
rhoc2.4 ± 0.04mol/lN/ATsonopoulos and Ambrose, 1996 
Quantity Value Units Method Reference Comment
Deltavap35.7kJ/molN/AReid, 1972AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
34.6326.AStephenson and Malanowski, 1987Based on data from 311. - 368. K.; AC
33.9342.N/AEisen and Orav, 1970Based on data from 327. - 367. K. See also Boublik, Fried, et al., 1984.; AC
35.3310.MMForziati, Camin, et al., 1950Based on data from 295. - 318. K.; AC
35.93300.VLister, 1941Heat of bromination at 300 K; ALS
35.9300.N/ALister, 1941Based on data from 255. - 312. K.; AC
34.5288.N/ABent, Cuthbertson, et al., 1936Based on data from 273. - 362. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
273.19 - 361.894.218111400.674-34.193Bent, Cuthbertson, et al., 1936Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
12.64154.3Domalski and Hearing, 1996AC
12.661153.4Parks, Todd, et al., 1936, 2DH

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
82.54153.4Parks, Todd, et al., 1936, 2DH

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
12.640153.89crystaline, IIliquidMcCullough, Finke, et al., 1957, 2DH
12.401154.30crystaline, IliquidMcCullough, Finke, et al., 1957, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
82.14153.89crystaline, IIliquidMcCullough, Finke, et al., 1957, 2DH
80.37154.30crystaline, IliquidMcCullough, Finke, et al., 1957, 2DH

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:


References

Go To: Top, Phase change data, Notes

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

McCullough, Finke, et al., 1957
McCullough, J.P.; Finke, H.L.; Gross, M.E.; Messerly, J.F.; Waddington, G., Low temperature calorimetric studies of seven 1-olefins: effect of orientational disorder in the solid state, J. Phys. Chem., 1957, 61, 289. [all data]

Parks, Todd, et al., 1936
Parks, G.S.; Todd, S.S.; Shomate, C.H., Thermal data on organic compounds. XVII. Some heat capacity, entropy and free energy data for five higher olefins, J. Am. Chem. Soc., 1936, 58, 2505. [all data]

Tsonopoulos and Ambrose, 1996
Tsonopoulos, C.; Ambrose, D., Vapor-Liquid Critical Properties of Elements and Compounds. 6. Unsaturated Aliphatic Hydrocarbons, J. Chem. Eng. Data, 1996, 41, 645-656. [all data]

Ambrose, Cox, et al., 1960
Ambrose, D.; Cox, J.D.; Townsend, R., The critical temperatures of forty organic compounds, Trans. Faraday Soc., 1960, 56, 1452. [all data]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [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]

Eisen and Orav, 1970
Eisen, O.; Orav, A., Eesti NSV Tead. Akad. Toim. Keem. Geol., 1970, 19, 3, 202. [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Forziati, Camin, et al., 1950
Forziati, A.F.; Camin, D.L.; Rossini, F.D., Density, refractive index, boiling point, and vapor pressure of eight monoolefin (1-alkene), six pentadiene, and two cyclomonoolefin hydrocarbons, J. RES. NATL. BUR. STAN., 1950, 45, 5, 406, https://doi.org/10.6028/jres.045.044 . [all data]

Lister, 1941
Lister, M.W., Heats of organic reactions. X. Heats of bromination of cyclic olefins, J. Am. Chem. Soc., 1941, 63, 143-149. [all data]

Bent, Cuthbertson, et al., 1936
Bent, H.E.; Cuthbertson, G.R.; Dorfman, M.; Leary, R.E., Single bond energies. I. The C-C bond in hexaphenylethane, J. Am. Chem. Soc., 1936, 58, 165-170. [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]

Parks, Todd, et al., 1936, 2
Parks, G.S.; Todd, S.S.; Shomate, C.H., Thermal data on organic compounds. XVII. Some heat capacity, entropy and free energy data for five higher olefins, J. Am. Chem. Soc., 1936, 58, 2505-2508. [all data]

McCullough, Finke, et al., 1957, 2
McCullough, J.P.; Finke, H.L.; Gross, M.E.; Messerly, J.F.; Waddington, G., Low temperature calorimetric studies of seven 1-olefins: effect of orientational disorder in the solid state, J. Phys. Chem., 1957, 61, 289-301. [all data]


Notes

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