Dotetracontane
- Formula: C42H86
- Molecular weight: 591.1322
- IUPAC Standard InChIKey: FTJPDYTXORWVLU-UHFFFAOYSA-N
- CAS Registry Number: 7098-20-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: n-Dotetracontane
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Condensed phase thermochemistry data
Go To: Top, Phase change data, 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: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
340.6 | 353. | Atkinson, Larkin, et al., 1969 | T = 353 to 453 K. Equation only. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, 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:
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 | 356.1 | K | N/A | Seyer, Patterson, et al., 1944 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 356.1 | K | N/A | Buchler and Graves, 1927 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 51.03 | 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 |
---|---|---|---|---|
32.5 | 582. | A,E | Stephenson and Malanowski, 1987 | Based on data from 567. to 810. K. See also Kudchadker and Zwolinski, 1966.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
39.668 | 357.3 | DSC | Wang, Tozaki, et al., 2006 | AC |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
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]
Seyer, Patterson, et al., 1944
Seyer, W.F.; Patterson, R.F.; Keays, J.L.,
The Density and Transition Points of the n-Paraffin Hydrocarbons,
J. Am. Chem. Soc., 1944, 66, 179-82. [all data]
Buchler and Graves, 1927
Buchler, C.C.; Graves, G.D.,
Ind. Eng. Chem., 1927, 19, 718. [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]
Wang, Tozaki, et al., 2006
Wang, Shaolan; Tozaki, Ken-Ichi; Hayashi, Hideko; Inaba, Hideaki; Yamamoto, Hiroko,
Observation of multiple phase transitions in some even n-alkanes using a high resolution and super-sensitive DSC,
Thermochimica Acta, 2006, 448, 2, 73-81, https://doi.org/10.1016/j.tca.2006.06.022
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Tfus Fusion (melting) point ΔfusH Enthalpy of fusion 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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