Pentacosanoic acid, methyl ester
- Formula: C26H52O2
- Molecular weight: 396.6899
- IUPAC Standard InChI: InChI=1S/C26H52O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26(27)28-2/h3-25H2,1-2H3
- IUPAC Standard InChIKey: WOPKHAQDUMDJIY-UHFFFAOYSA-N
- CAS Registry Number: 55373-89-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Methyl pentacosanoate
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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 by: William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 33.9 ± 1.1 | kcal/mol | CGC | Chickos, Zhao, et al., 2004 | Based on data from 467. to 558. K. |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference |
|---|---|---|---|
| 22.0 | 332.2 | DSC | Chickos, Zhao, et al., 2004 |
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
Van Den Dool and Kratz RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5MS | 2822.9 | Zhao C.X., Li, et al., 2006 | 30. m/0.25 mm/0.25 μm, He, 4. K/min; Tstart: 80. C; Tend: 300. C |
| Capillary | DB-1 | 2813. | Johnson, Urso, et al., 1997 | 30. m/0.2 mm/0.25 μm, 50. C @ 2. min, 5. K/min, 300. C @ 5. min |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-1MS | 2813.71 | Stransky, Zarevucka, et al., 2006 | 30. m/0.252 mm/0.25 μm, H2, 1. K/min; Tstart: 240. C; Tend: 340. C |
| Packed | SE-30 | 2817. | Horning, Casparrini, et al., 1969 | Gas Chrom P, 2. K/min; Column length: 3.7 m; Tstart: 145. C |
Lee's RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-1 | 464.3 | Johnson, Urso, et al., 1997 | 30. m/0.2 mm/0.25 μm, 50. C @ 2. min, 5. K/min, 300. C @ 5. min |
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.
Chickos, Zhao, et al., 2004
Chickos, James S.; Zhao, Hui; Nichols, Gary,
The vaporization enthalpies and vapor pressures of fatty acid methyl esters C18, C21 to C23, and C25 to C29 by correlation -- gas chromatography,
Thermochimica Acta, 2004, 424, 1-2, 111-121, https://doi.org/10.1016/j.tca.2004.05.020
. [all data]
Zhao C.X., Li, et al., 2006
Zhao C.X.; Li, X.N.; Liang Y.Z.; Fang H.Z.; Huang L.F.; Guo F.Q.,
Comparative analysis of chemical components of essential oils from different samples of Rhododendron with the help of chemometrics methods,
Chemom. Intell. Lab. Syst., 2006, 82, 1-2, 218-228, https://doi.org/10.1016/j.chemolab.2005.08.008
. [all data]
Johnson, Urso, et al., 1997
Johnson, C.I.; Urso, A.; Geleta, L.,
Broad spectrum analysis of municipal and industrial effluents discharged into the Peace, Athabasca and Slave river basins: characterization of effluent samples, 1994 - Volume 1 of 2, Northern River Basins Study Project Report No. 121, Norther River Basins Study, Edmonton, Alberta, 1997, 27. [all data]
Stransky, Zarevucka, et al., 2006
Stransky, K.; Zarevucka, M.; Valterova, I.; Wimmer, Z.,
Gas chromatographic retention data of wax esters,
J. Chromatogr. A, 2006, 1128, 1-2, 208-219, https://doi.org/10.1016/j.chroma.2006.06.035
. [all data]
Horning, Casparrini, et al., 1969
Horning, M.G.; Casparrini, G.; Horning, E.C.,
The use of gas phase analytical methods for the analysis of phospholipids,
J. Chromatogr. Sci., 1969, 7, 5, 267-275, https://doi.org/10.1093/chromsci/7.5.267
. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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