Methyl stearate
- Formula: C19H38O2
- Molecular weight: 298.5038
- IUPAC Standard InChIKey: HPEUJPJOZXNMSJ-UHFFFAOYSA-N
- CAS Registry Number: 112-61-8
- 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: Octadecanoic acid, methyl ester; Stearic acid, methyl ester; n-Octadecanoic acid, methyl ester; Kemester 9718; Methyl n-octadecanoate; Methyl octadecanoate; Metholene 2218; Emery 2218; Kemester 9018; Methyl ester of octadecanoic acid; Kemester 4516; NSC 9418; 172226-13-0; 172226-14-1; 218433-32-0; 28:0, Me ester
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Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 310. | K | N/A | Babich, Hwang, et al., 1992 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 312.15 | K | N/A | Gaikwad and Subrahmanyam, 1985 | Uncertainty assigned by TRC = 0.35 K; TRC |
Tfus | 311.2 | K | N/A | Kurtz, 1952 | Uncertainty assigned by TRC = 1. K; TRC |
Tfus | 312.1 | K | N/A | Boelhouwer, Nederbragt, et al., 1950 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 109.5 ± 2.7 | kJ/mol | CGC | Chickos, Zhao, et al., 2004 | Based on data from 467. to 558. K.; AC |
ΔvapH° | 105.9 ± 1.4 | kJ/mol | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
ΔvapH° | 106.2 | kJ/mol | GC | Krop, Velzen, et al., 1997 | Based on data from 463. to 523. K.; AC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
488.2 | 0.020 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
98. | 350. | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
90.0 ± 0.3 | 401. | N/A | van Genderen, van Miltenburg, et al., 2002 | AC |
75.4 | 498. | GC | Husain, Sarma, et al., 1993 | Based on data from 453. to 543. K.; AC |
83.2 | 442. | A | Stephenson and Malanowski, 1987 | Based on data from 427. to 484. K. See also Rose and Schrodt, 1964.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
427.16 to 484.82 | 5.88185 | 3249.472 | -59.659 | Rose and Schrodt, 1964 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
158.2 ± 2.5 | 304. | Davies and Kybett, 1965 | Based on data from 299. to 310. K. See also Stephenson and Malanowski, 1987.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
19.234 | 310.93 | N/A | King and Garner, 1936 | DH |
61.7 | 310.9 | DSC | Chickos, Zhao, et al., 2004 | AC |
71.1 | 311. | N/A | Nikolic, Marinovic-Cincovic, et al., 2003 | AC |
64.4 | 310. | N/A | King and Garner, 1936, 2 | 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.
Babich, Hwang, et al., 1992
Babich, M.W.; Hwang, S.W.; Mounts, R.D.,
Thermochim. Acta, 1992, 210, 77. [all data]
Gaikwad and Subrahmanyam, 1985
Gaikwad, B.R.; Subrahmanyam, V.V.,
Melting behavior of fatty alcohols and their binary blends.,
J. Indian Chem. Soc., 1985, 62, 513. [all data]
Kurtz, 1952
Kurtz, F.E.,
Chromatography of Methayl Stearate, Methyl Oleate, Methy Linoleate and Methyl Linolenate: A COncept of AMplified Chromatographic Separations,
J. Am. Chem. Soc., 1952, 74, 1902-9. [all data]
Boelhouwer, Nederbragt, et al., 1950
Boelhouwer, J.W.M.; Nederbragt, G.W.; Verberg, G.W.,
Viscosity data of organic liquids,
Appl. Sci. Res., Sect. A, 1950, 2, 249. [all data]
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, 1964
Rose, Arthur.; Schrodt, V.N.,
Vapor-Liquid Equilibria for the Methyl Oleate and Methyl Stearate Binary System.,
J. Chem. Eng. Data, 1964, 9, 1, 12-16, https://doi.org/10.1021/je60020a006
. [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.M.; Garner, W.E.,
The heats of crystallization of methyl and ethyl esters of monobasic fatty acids, 1936, J. [all data]
Nikolic, Marinovic-Cincovic, et al., 2003
Nikolic, R.; Marinovic-Cincovic, M.; Gadzuric, S.; Zsigrai, I.J.,
New materials for solar thermal storage---solid/liquid transitions in fatty acid esters,
Solar Energy Materials and Solar Cells, 2003, 79, 3, 285-292, https://doi.org/10.1016/S0927-0248(02)00412-9
. [all data]
King and Garner, 1936, 2
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 Tfus Fusion (melting) 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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