Heneicosane, 11-decyl-
- Formula: C31H64
- Molecular weight: 436.8399
- IUPAC Standard InChIKey: BCWYKEQUGMQGAP-UHFFFAOYSA-N
- CAS Registry Number: 55320-06-4
- 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: 11-Decylheneicosane; 11-n-Decylheneicosane
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Condensed phase thermochemistry data
Go To: Top, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -201.3 ± 2.1 | kcal/mol | Ccb | Parks, West, et al., 1946 | Heat of vaporization estimated by Cox and Pilcher, 1970; ALS |
ΔfH°liquid | -204.0 ± 1.9 | kcal/mol | Ccb | Knowlton and Huffman, 1944 | Reanalyzed by Cox and Pilcher, 1970, Original value = -204.4 kcal/mol; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -4900.4 ± 2.0 | kcal/mol | Ccb | Parks, West, et al., 1946 | Heat of vaporization estimated by Cox and Pilcher, 1970; Corresponding ΔfHºliquid = -201.27 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -4897.7 ± 1.9 | kcal/mol | Ccb | Knowlton and Huffman, 1944 | Reanalyzed by Cox and Pilcher, 1970, Original value = -4897.3 kcal/mol; Corresponding ΔfHºliquid = -203.97 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 259.61 | cal/mol*K | N/A | Fischl, Naylor, et al., 1945 | Penn State entropy above. From Stanford data, with extrapolation of 218.0 J/mol*K, S = 1098.3 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
227.0 | 300. | Fischl, Naylor, et al., 1945 | T = 12 to 296 K (Penn State), 80 to 297 K (Stanford); at 300 K, Cp = 949.8 J/mol*K (Penn State), 963.2 J/mol*K (Stanford).; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Parks, West, et al., 1946
Parks, G.S.; West, T.J.; Naylor, B.F.; Fujii, P.S.; McClaine, L.A.,
Thermal data on organic compounds. XXIII. Modern combustion data for fourteen hydrocarbons and five polyhydroxy alcohols,
J. Am. Chem. Soc., 1946, 68, 2524-2527. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Knowlton and Huffman, 1944
Knowlton, J.W.; Huffman, H.M.,
The heats of combustion of some substituted eicosanes, heneicosanes and docosanes,
J. Am. Chem. Soc., 1944, 66, 1492-1494. [all data]
Fischl, Naylor, et al., 1945
Fischl, F.B.; Naylor, B.G.; Ziemer, C.W.; Parks, G.S.; Aston, J.G.,
The heat capacity, heat of fusion and entropy of 11-n-decylheneicosane,
J. Am. Chem. Soc., 1945, 67, 2075-2079. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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