- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: TVSBRLGQVHJIKT-UHFFFAOYSA-N
- CAS Registry Number: 3875-51-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: Cyclopentane, isopropyl-; Isopropylcyclopentane; Propane, 2-cyclopentyl-
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Phase change data
Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes
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
|Tboil||399.57 ± 0.04||K||AVG||N/A||Average of 12 out of 15 values; Individual data points|
|Tfus||161. ± 1.||K||AVG||N/A||Average of 7 values; Individual data points|
|vapH°||39.48||kJ/mol||N/A||Majer and Svoboda, 1985|
|vapH°||39.4 ± 0.1||kJ/mol||C||Osborne and Ginnings, 1947||AC|
Enthalpy of vaporization
|vapH (kJ/mol)||Temperature (K)||Method||Reference||Comment|
|33.56||399.6||N/A||Majer and Svoboda, 1985|
|37.9||335.||A,MM||Stephenson and Malanowski, 1987||Based on data from 320. - 403. K. See also Willingham, Taylor, et al., 1945.; AC|
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
|320.18 - 400.54||4.01742||1383.34||-54.742||Forziati, Norris, et al., 1949||Coefficents calculated by NIST from author's data.|
Reaction thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
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.
+ 2 =
By formula: C8H12 + 2H2 = C8H16
|rH°||-208. ± 2.||kJ/mol||Chyd||Roth, Adamczak, et al., 1991||liquid phase|
3 + =
By formula: 3H2 + C8H10 = C8H16
|rH°||-302. ± 0.4||kJ/mol||Chyd||Roth, Adamczak, et al., 1991||liquid phase|
Mass spectrum (electron ionization)
Go To: Top, Phase change data, Reaction thermochemistry data, References, Notes
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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|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.
|NIST MS number||1611|
Go To: Top, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), Notes
Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
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]
Osborne and Ginnings, 1947
Osborne, Nathan S.; Ginnings, Defoe C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. RES. NATL. BUR. STAN., 1947, 39, 5, 453-17, https://doi.org/10.6028/jres.039.031 . [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]
Forziati, Norris, et al., 1949
Forziati, A.F.; Norris, W.R.; Rossini, F.D., Vapor Pressures and Boiling Points of Sixty API-NBS Hydrocarbons, J. Res. Natl. Bur. Stand. (U.S.), 1949, 43, 6, 555-563, https://doi.org/10.6028/jres.043.050 . [all data]
Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R., Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld, Chem. Ber., 1991, 124, 2499-2521. [all data]
Go To: Top, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point rH° Enthalpy of reaction at standard conditions vapH Enthalpy of vaporization vapH° Enthalpy of vaporization at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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