n-Octatetracontane
- Formula: C48H98
- Molecular weight: 675.2917
- IUPAC Standard InChIKey: CFBPOLLJQOANPF-UHFFFAOYSA-N
- CAS Registry Number: 7098-26-2
- Chemical structure:
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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 by: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
1595. | 353. | Atkinson, Larkin, et al., 1969 | T = 353 to 453 K. Equation only. |
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 361.4 | K | N/A | Lukes and Dolezal, 1957 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 243.0 ± 0.2 | kJ/mol | CGC | Chickos, Wang, et al., 2008 | Based on data from 323. to 523. K.; AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
145.9 | 610. | A,E | Stephenson and Malanowski, 1987 | Based on data from 595. to 843. K. See also Kudchadker and Zwolinski, 1966.; AC |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Atkinson, Larkin, et al., 1969
Atkinson, C.M.L.; Larkin, J.A.; Richardson, M.J.,
Enthalpy changes in molten n-alkanes and polyethylene,
J. Chem. Thermodynam., 1969, 1, 435-445. [all data]
Lukes and Dolezal, 1957
Lukes, R.; Dolezal, S.,
The Action of Grignard Reagents on the Amide Group XXI. Synthesis of Some Higher Monocarboxylic Acids,
Chem. Listy, 1957, 51, 2065. [all data]
Chickos, Wang, et al., 2008
Chickos, James; Wang, Tracy; Sharma, Esseim,
Hypothetical Thermodynamic Properties: Vapor Pressures and Vaporization Enthalpies of the Even n -Alkanes from C 40 to C 76 at T = 298.15 K by Correlation-Gas Chromatography. Are the Vaporization Enthalpies a Linear Function of Carbon Number?,
J. Chem. Eng. Data, 2008, 53, 2, 481-491, https://doi.org/10.1021/je7005852
. [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]
Kudchadker and Zwolinski, 1966
Kudchadker, A.P.; Zwolinski, B.J.,
Vapor Pressure and Boiling Points of Normal Alkanes, C 21 to C 100 .,
J. Chem. Eng. Data, 1966, 11, 2, 253-255, https://doi.org/10.1021/je60029a039
. [all data]
Notes
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- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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