Eicosanoic acid, methyl ester
- Formula: C21H42O2
- Molecular weight: 326.5570
- IUPAC Standard InChIKey: QGBRLVONZXHAKJ-UHFFFAOYSA-N
- CAS Registry Number: 1120-28-1
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Methyl arachisate; Methyl eicosanoate; Arachidic acid methyl ester; Kemester 2050; Methyl aracidate; Methyl eicosenate; Methyl arachidate; methyl icosanoate
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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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 28.90 ± 0.60 | kcal/mol | CGC | Chickos, Zhao, et al., 2004 | Based on data from 467. to 558. K.; AC |
ΔvapH° | 27.82 ± 0.36 | kcal/mol | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
ΔvapH° | 27.77 | kcal/mol | GC | Krop, Velzen, et al., 1997 | Based on data from 463. to 523. K.; AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
488.7 | 0.013 | Weast and Grasselli, 1989 | BS |
461.2 | 0.003 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
26.10 | 350. | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
23.4 ± 0.05 | 406. | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
18.4 | 498. | GC | Husain, Sarma, et al., 1993 | Based on data from 453. to 543. K.; AC |
22.1 | 465. | A,EST | Stephenson and Malanowski, 1987 | Based on data from 450. to 540. K. See also Rose and Schrodt, 1963.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
45.6 ± 2.4 | 314. | ME | Davies and Kybett, 1965 | Based on data from 311. to 318. K. See also Stephenson and Malanowski, 1987.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
17.8 | 319.2 | DSC | Chickos, Zhao, et al., 2004 | AC |
17.6 | 319.2 | N/A | King and Garner, 1936 | 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.
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]
van Genderen, van Miltenburg, et al., 2002
van Genderen, Aad C.G.; van Miltenburg, J. Cees; Blok, Jacobus G.; van Bommel, Mark J.; van Ekeren, Paul J.; van den Berg, Gerrit J.K.; Oonk, Harry A.J.,
Liquid--vapour equilibria of the methyl esters of alkanoic acids: vapour pressures as a function of temperature and standard thermodynamic function changes,
Fluid Phase Equilibria, 2002, 202, 1, 109-120, https://doi.org/10.1016/S0378-3812(02)00097-3
. [all data]
Krop, Velzen, et al., 1997
Krop, Hildo B.; Velzen, Martin J.M.v.; Parsons, John R.; Govers, Harrie A.J.,
Determination of environmentally relevant physical-chemical properties of some fatty acid esters,
J Amer Oil Chem Soc, 1997, 74, 3, 309-315, https://doi.org/10.1007/s11746-997-0142-9
. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Husain, Sarma, et al., 1993
Husain, Sajid; Sarma, P. Nageswara; Swamy, G.Y.S.K.; Devi, K. Sita,
Determination of physicochemical properties of some fatty acid methyl esters by gas liquid chromatography,
J Am Oil Chem Soc, 1993, 70, 2, 149-155, https://doi.org/10.1007/BF02542618
. [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]
Rose and Schrodt, 1963
Rose, Arthur; Schrodt, Verle N.,
Correlation and Prediction of Vapor Pressures of Homologs. Use of Structure Parameters and Gas Chromatography Data.,
J. Chem. Eng. Data, 1963, 8, 1, 9-13, https://doi.org/10.1021/je60016a002
. [all data]
Davies and Kybett, 1965
Davies, M.; Kybett, B.,
Sublimation and vaporization heats of long-chain alcohols,
Trans. Faraday Soc., 1965, 61, 1608. [all data]
King and Garner, 1936
King, A. Millicent; Garner, William E.,
297. The heats of crystallisation of methyl and ethyl esters of monobasic fatty acids,
J. Chem. Soc., 1936, 1372, https://doi.org/10.1039/jr9360001372
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation 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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