Perfluorododecane
- Formula: C12F26
- Molecular weight: 638.0869
- IUPAC Standard InChI: InChI=1S/C12F26/c13-1(14,3(17,18)5(21,22)7(25,26)9(29,30)11(33,34)35)2(15,16)4(19,20)6(23,24)8(27,28)10(31,32)12(36,37)38
- IUPAC Standard InChIKey: WNZGTRLARPEMIG-UHFFFAOYSA-N
- CAS Registry Number: 307-59-5
- 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: hexacosafluorododecane; n-Perfluorododecane
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Phase change data
Go To: Top, Gas Chromatography, 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
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 347.30 | K | N/A | Jin, Boller, et al., 1994 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC |
| Tfus | 348.5 | K | N/A | Starkweather, 1986 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.5 K; TRC |
| Tfus | 348. | K | N/A | Starkweather, 1986 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
| Tfus | 347.6 | K | N/A | Smith. P. and Gardner, 1985 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC |
| Tfus | 348.2 | K | N/A | Segwichert, 1984 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 9.120 | 348.5 | DSC | Starkweather, 1986, 2 | AC |
Entropy of fusion
| ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 9.689 | 170.2 | Starkweather, 1986 | CAL |
| 26.17 | 348.5 |
Enthalpy of phase transition
| ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 1.212 | 177.52 | crystaline, II | crystaline, I | Lebedev, Bykova, et al., 1993 | DH |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 5.40 | 177.52 | crystaline, II | crystaline, I | Lebedev, Bykova, et al., 1993 | DH |
Gas Chromatography
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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Packed | Squalane | 50. | 528. | Müller, Dietrich, et al., 1983 |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Jin, Boller, et al., 1994
Jin, Y.; Boller, A.; Wunderlich, B.; Lebedev, B.V.,
Heat capacities and transitions in n-perfluoroalkanes and poly(tetrafluoroethylene),
Thermochim. Acta, 1994, 234, 103-25. [all data]
Starkweather, 1986
Starkweather, H.W., Jr.,
Melting and crystalline transitions in normal perfluoroalkanes and poly(tetrafluoroethylene),
Marcomolecules, 1986, 19, 4, 1131, https://doi.org/10.1021/ma00158a034
. [all data]
Smith. P. and Gardner, 1985
Smith. P.; Gardner, K.H.,
Macromolecules, 1985, 18, 1222. [all data]
Segwichert, 1984
Segwichert, H.,
, Dissertation, Johannes Gutenberg Univ.,Mainz, 1984. [all data]
Starkweather, 1986, 2
Starkweather, Howard W.,
Melting and crystalline transitions in normal perfluoroalkanes and poly(tetrafluoroethylene),
Macromolecules, 1986, 19, 4, 1131-1134, https://doi.org/10.1021/ma00158a034
. [all data]
Lebedev, Bykova, et al., 1993
Lebedev, B.V.; Bykova, T.A.; Vasil'ev, V.G.; Wunderlich, B.,
Heat Capacity and thermodynamic functions of a series of n-perfluororalkanes in the range 0-320 K,
Zhur. Khim. Termodin. Termokhim. 2, 1993, (1), 62-79. [all data]
Müller, Dietrich, et al., 1983
Müller, U.; Dietrich, P.; Prescher, D.,
Gaschromatographische Untersuchungen an Perfluor-Carbonverbindungen. II. Zur Gaschromatographischen Trennung von Gemischen Längerkettiger Perfluoralkane und Perfluoralkene,
J. Chromatogr., 1983, 259, 243-254, https://doi.org/10.1016/S0021-9673(01)88005-5
. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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