octapentacontane
- Formula: C58H118
- Molecular weight: 815.5575
- IUPAC Standard InChI: InChI=1S/C58H118/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-35-37-39-41-43-45-47-49-51-53-55-57-58-56-54-52-50-48-46-44-42-40-38-36-34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-58H2,1-2H3
- IUPAC Standard InChIKey: HDKSWQPFGWHOIA-UHFFFAOYSA-N
- CAS Registry Number: 7667-78-9
- Chemical structure:
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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:
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 | 370. | K | N/A | Slowinski, Walter, et al., 1956 | Uncertainty assigned by TRC = 2. K; TRC |
| Tfus | 373. | K | N/A | Geiger-Berschandy, 1955 | Uncertainty assigned by TRC = 5. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 68.95 ± 0.43 | kcal/mol | CGC | Chickos, Wang, et al., 2008 | Based on data from 323. to 523. K.; AC |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 38.31 | 647. | A,E | Stephenson and Malanowski, 1987 | Based on data from 632. to 886. K. See also Kudchadker and Zwolinski, 1966.; AC |
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.
Slowinski, Walter, et al., 1956
Slowinski; Walter; Miller,
J. Polym. Sci., 1956, 19, 353. [all data]
Geiger-Berschandy, 1955
Geiger-Berschandy, S.,
Bull. Soc. Chim. Fr., 1955, 1955, 994. [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
Go To: Top, Phase change data, References
- Symbols used in this document:
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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