Tetratetracontane
- Formula: C44H90
- Molecular weight: 619.1854
- IUPAC Standard InChI: InChI=1S/C44H90/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-35-37-39-41-43-44-42-40-38-36-34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-44H2,1-2H3
- IUPAC Standard InChIKey: KMXFZRSJMDYPPG-UHFFFAOYSA-N
- CAS Registry Number: 7098-22-8
- 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-Tetratetracontane
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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 | 359.15 | K | N/A | Anonymous, 1968 | Uncertainty assigned by TRC = 0.5 K; TRC |
| Tfus | 359.6 | K | N/A | Seyer, Patterson, et al., 1944 | Uncertainty assigned by TRC = 2. K; TRC |
| Tfus | 338.5 | K | N/A | Becker and Strating, 1940 | Uncertainty assigned by TRC = 1.5 K; TRC |
| Tfus | 333.5 | K | N/A | Becker and Strating, 1940 | Metastable crystal phase; Uncertainty assigned by TRC = 2. K; TRC |
| Tfus | 359.6 | K | N/A | Mueller, 1932 | Uncertainty assigned by TRC = 2. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 53.5 ± 0.2 | 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 |
|---|---|---|---|---|
| 33.29 | 592. | A,E | Stephenson and Malanowski, 1987 | Based on data from 577. to 821. K. See also Kudchadker and Zwolinski, 1966.; AC |
| 34.9 | 387. | N/A | Ivanov, Guglya, et al., 1973 | AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 34.78 | 360.9 | Hammami and Mehrotra, 1995 | 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.
Anonymous, 1968
Anonymous, R.,
Properties of hydrocarbon of high molecular weight, Am. Pet. Inst. Res. Proj. 42, Penn. State Univ., 1968. [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]
Becker and Strating, 1940
Becker, H.J.; Strating, J.,
Preparation of Several Crystalline Aliphatic Hydrocarbons in the Pure State,
Rec. Trav. Chim., 1940, 59, 933-46. [all data]
Mueller, 1932
Mueller, A.,
Proc. R. Soc. London, A, 1932, 138, 514. [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]
Ivanov, Guglya, et al., 1973
Ivanov, G.A.; Guglya, V.G.; Zhukhovitskii, A.A.,
Determination of the characteristics of chromatographic stationary phases using a piezoelectric quartz sensor,
Zavadskaya Lab., 1973, 39, 15. [all data]
Hammami and Mehrotra, 1995
Hammami, Ahmed; Mehrotra, Anil K.,
Liquid-solid-solid thermal behaviour of n-C44H90 + n-C50H102 and n-C25H52 + n-C28H58 paraffinic binary mixtures,
Fluid Phase Equilibria, 1995, 111, 2, 253-272, https://doi.org/10.1016/0378-3812(95)02777-C
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
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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