Acetic acid, methyl ester
- Formula: C3H6O2
- Molecular weight: 74.0785
- IUPAC Standard InChIKey: KXKVLQRXCPHEJC-UHFFFAOYSA-N
- CAS Registry Number: 79-20-9
- 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: Methyl acetate; Devoton; Tereton; CH3COOCH3; Methyl ethanoate; Acetate de methyle; Methyl acetic ester; Methylacetaat; Methylacetat; Methyle (acetate de); Methylester kiseliny octove; Metile (acetato di); Ethyl ester of monoacetic acid; UN 1231; Methyl ester of acetic acid; NSC 405071
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 330.0 ± 0.9 | K | AVG | N/A | Average of 50 out of 55 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 175.15 | K | N/A | Timmermans and Hennaut-Roland, 1955 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 175.1 | K | N/A | Timmermans, 1911 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 174.90 | K | N/A | Okamoto, Oguni, et al., 1992 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 510. ± 30. | K | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 47.50 | bar | N/A | Ambrose, Ellender, et al., 1981 | Uncertainty assigned by TRC = 0.0474 bar; Visual; TRC |
Pc | 46.94 | bar | N/A | Young, 1910 | Uncertainty assigned by TRC = 0.8106 bar; TRC |
Pc | 46.943 | bar | N/A | Young and Thomas, 1893 | Uncertainty assigned by TRC = 0.40 bar; TRC |
Pc | 48.17 | bar | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 1.0132 bar; TRC |
Pc | 58.40 | bar | N/A | Sajots, 1879 | Uncertainty assigned by TRC = 6.0795 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.394 | mol/l | N/A | Young and Thomas, 1893 | Uncertainty assigned by TRC = 0.05 mol/l; TRC |
ρc | 4.32 | mol/l | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 0.08 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 33. ± 4. | kJ/mol | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
30.32 | 330.1 | N/A | Majer and Svoboda, 1985 | |
34.1 | 275. | A | Stephenson and Malanowski, 1987 | Based on data from 260. to 351. K.; AC |
33.4 | 289. | A | Stephenson and Malanowski, 1987 | Based on data from 274. to 329. K. See also Polák and Mertl, 1965 and Dykyj, 1970.; AC |
31.8 | 323. | DTA | Meyer, Awe, et al., 1980 | Based on data from 308. to 338. K.; AC |
29.5 ± 0.1 | 343. | C | Svoboda, Uchytilová, et al., 1980 | AC |
32.2 ± 0.1 | 304. | C | Svoboda, Veselý, et al., 1977 | AC |
31.6 ± 0.1 | 313. | C | Svoboda, Veselý, et al., 1977 | AC |
30.5 ± 0.1 | 328. | C | Svoboda, Veselý, et al., 1977 | AC |
30.3 ± 0.1 | 331. | C | Svoboda, Veselý, et al., 1977 | AC |
32.5 | 295. | N/A | Connett, Counsell, et al., 1976 | AC |
30.2 | 330. | N/A | Connett, Counsell, et al., 1976 | AC |
34.5 | 296. | BG | Baldt and Hall, 1971 | Based on data from 273. to 318. K.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kJ/mol)
Tr = reduced temperature (T / Tc)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A (kJ/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
296. to 343. | 48.51 | 0.2757 | 506.8 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
274.91 to 328.99 | 4.20364 | 1164.426 | -52.69 | Polák and Mertl, 1965 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
7.486 | 174.897 | Okamoto, Oguni, et al., 1992, 2 | DH |
7.49 | 174.9 | Okamoto, Oguni, et al., 1992, 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.
Timmermans and Hennaut-Roland, 1955
Timmermans, J.; Hennaut-Roland, M.,
Work of the International Bureau of Physical-Chemical Standards. IX. The Physical Constants of Twenty Organic Compounds,
J. Chim. Phys. Phys.-Chim. Biol., 1955, 52, 223. [all data]
Timmermans, 1911
Timmermans, J.,
Researches on the freezing point of organic liquid compounds,
Bull. Soc. Chim. Belg., 1911, 25, 300. [all data]
Okamoto, Oguni, et al., 1992
Okamoto, N.; Oguni, M.; Saga, H.,
Low temperature calorimetric study of methyl acetate,
Thermochim. Acta, 1992, 202, 215, https://doi.org/10.1016/0040-6031(92)85165-R
. [all data]
Ambrose, Ellender, et al., 1981
Ambrose, D.; Ellender, J.H.; Gundry, H.A.; Lee, D.A.; Townsend, R.,
Thermodynamic properties of organic oxygen compounds. LI. The vapour pressures of some esters and fatty acids,
J. Chem. Thermodyn., 1981, 13, 795. [all data]
Young, 1910
Young, S.,
The Internal Heat of Vaporization constants of thirty pure substances,
Sci. Proc. R. Dublin Soc., 1910, 12, 374. [all data]
Young and Thomas, 1893
Young, S.; Thomas, G.L.,
The vapour pressures, molecular volumes, and critical constants of ten of the lower esters,
J. Chem. Soc., 1893, 63, 1191. [all data]
Nadezhdin, 1887
Nadezhdin, A.,
Rep. Phys., 1887, 23, 708. [all data]
Sajots, 1879
Sajots, W.,
Vapor Pressures of Saturated Vapors at High Temperatures.,
Beibl. Ann. Phys., 1879, 3, 741-3. [all data]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [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]
Polák and Mertl, 1965
Polák, J.; Mertl, I.,
Saturated vapour pressure of methyl acetate, ethyl acetate, n-propyl acetate, methyl propionate, and ethyl propionate,
Collect. Czech. Chem. Commun., 1965, 30, 10, 3526-3528, https://doi.org/10.1135/cccc19653526
. [all data]
Dykyj, 1970
Dykyj, J.,
Petrochemica, 1970, 10, 2, 51. [all data]
Meyer, Awe, et al., 1980
Meyer, Edwin F.; Awe, Michael J.; Wagner, Robert E.,
Cohesive energies in polar organic liquids. 4. n-Alkyl acetates,
J. Chem. Eng. Data, 1980, 25, 4, 371-374, https://doi.org/10.1021/je60087a030
. [all data]
Svoboda, Uchytilová, et al., 1980
Svoboda, Václav; Uchytilová, Vera; Majer, Vladimír; Pick, Jirí,
Heats of vaporization of alkyl esters of formic, acetic and propionic acids,
Collect. Czech. Chem. Commun., 1980, 45, 12, 3233-3240, https://doi.org/10.1135/cccc19803233
. [all data]
Svoboda, Veselý, et al., 1977
Svoboda, V.; Veselý, F.; Holub, R.; Pick, J.,
Heats of vaporization of alkyl acetates and propionates,
Collect. Czech. Chem. Commun., 1977, 42, 3, 943-951, https://doi.org/10.1135/cccc19770943
. [all data]
Connett, Counsell, et al., 1976
Connett, J.E.; Counsell, J.F.; Lee, D.A.,
Thermodynamic properties of organic oxygen compounds XLIV. Vapour heat capacities and enthalpies of vaporization of methyl acetate, ethyl acetate, and propyl acetate,
The Journal of Chemical Thermodynamics, 1976, 8, 12, 1199-1203, https://doi.org/10.1016/0021-9614(76)90129-4
. [all data]
Baldt and Hall, 1971
Baldt, J.H.; Hall, H.K.K., Jr.,
Thermochemistry of strained-ring bridgehead nitriles and esters,
J. Am. Chem. Soc., 1971, 93, 140-145. [all data]
Okamoto, Oguni, et al., 1992, 2
Okamoto, N.; Oguni, M.; Suga, H.,
Low temperature calorimetric study of methyl acetate,
Thermochim. Acta, 1992, 202, 215-222. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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