Ethyl formate
- Formula: C3H6O2
- Molecular weight: 74.0785
- IUPAC Standard InChIKey: WBJINCZRORDGAQ-UHFFFAOYSA-N
- CAS Registry Number: 109-94-4
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Isotopologues:
- Other names: Formic acid, ethyl ester; Areginal; Ethyl methanoate; HCOOC2H5; Ethylformic ester; Aethylformiat; Ethyle (formiate d'); Ethylformiaat; Etile (formiato di); Mrowczan etylu; Ethylester kyseliny mravenci; Formic ether; UN 1190; Ethyl ester of formic acid; NSC 406578
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Condensed phase thermochemistry data
Go To: Top, Phase change data, IR Spectrum, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -394.2 ± 0.8 | kJ/mol | Eqk | Frolova and Petrov, 1991 | ALS |
ΔfH°liquid | -430.5 | kJ/mol | Cm | Hine and Klueppet, 1974 | ALS |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
144.3 | 298.15 | Fuchs, 1979 | DH |
158.2 | 290. | Kurnakov and Voskresenskaya, 1936 | DH |
148.1 | 294.7 | Kolosovskii and Udovenko, 1934 | DH |
148.1 | 294.7 | de Kolossowsky and Udowenko, 1933 | DH |
Phase change data
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 327. ± 1. | K | AVG | N/A | Average of 33 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 193.55 | K | N/A | Timmermans, 1952 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 193. | K | N/A | Timmermans, 1935 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 193.75 | K | N/A | Timmermans, 1934 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 192.65 | K | N/A | Timmermans, 1911 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 508. ± 5. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 47.38 | bar | N/A | Young, 1910 | Uncertainty assigned by TRC = 1.0132 bar; TRC |
Pc | 47.370 | bar | N/A | Young and Thomas, 1893 | Uncertainty assigned by TRC = 0.40 bar; TRC |
Pc | 49.81 | bar | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 2.0265 bar; TRC |
Pc | 49.30 | bar | N/A | Sajots, 1879 | Uncertainty assigned by TRC = 2.0265 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.363 | mol/l | N/A | Young, 1910 | Uncertainty assigned by TRC = 0.07 mol/l; TRC |
ρc | 4.363 | mol/l | N/A | Young and Thomas, 1893 | Uncertainty assigned by TRC = 0.05 mol/l; TRC |
ρc | 4.25 | mol/l | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 0.08 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 32.11 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 32.2 | kJ/mol | V | Hine and Klueppet, 1974 | ALS |
ΔvapH° | 32.5 | kJ/mol | N/A | Hine and Klueppet, 1974 | DRB |
ΔvapH° | 30.1 ± 0.01 | kJ/mol | V | Mathews, 1926 | ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
29.91 | 327.5 | N/A | Majer and Svoboda, 1985 | |
31.4 | 313. | N/A | Fárková and Wichterle, 1993 | Based on data from 300. to 326. K.; AC |
29.9 | 342. | A | Stephenson and Malanowski, 1987 | Based on data from 327. to 498. K.; AC |
35.8 | 228. | A | Stephenson and Malanowski, 1987 | Based on data from 213. to 336. K. See also Dykyj, 1970.; AC |
31.6 ± 0.1 | 304. | C | Cihlár, Hynek, et al., 1976 | AC |
30.9 ± 0.1 | 313. | C | Cihlár, Hynek, et al., 1976 | AC |
29.8 ± 0.1 | 328. | C | Cihlár, Hynek, et al., 1976 | 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)
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Temperature (K) | A (kJ/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
304. to 343. | 51.07 | 0.3191 | 508.4 | Majer and Svoboda, 1985 |
IR Spectrum
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Frolova and Petrov, 1991
Frolova, E.I.; Petrov, A.A.,
Chemical equilibrium in the system formic acid-ethanol-ethyl formate-water,
J. Appl. Chem. USSR, 1991, 64, 2361-2365. [all data]
Hine and Klueppet, 1974
Hine, J.; Klueppet, A.W.,
Structural effects on rates and equilibria. XVIII. Thermodynamic stability of ortho esters,
J. Am. Chem. Soc., 1974, 96, 2924-2929. [all data]
Fuchs, 1979
Fuchs, R.,
Heat capacities of some liquid aliphatic, alicyclic, and aromatic esters at 298.15 K,
J. Chem. Thermodyn., 1979, 11, 959-961. [all data]
Kurnakov and Voskresenskaya, 1936
Kurnakov, N.S.; Voskresenskaya, N.K.,
Calorimetry of liquid binary systems, Izv. Akad. Nauk SSSR,
Otdel. Mat. i Estestv. Nauk. Ser. Khim, 1936, 1936, 439-461. [all data]
Kolosovskii and Udovenko, 1934
Kolosovskii, N.A.; Udovenko, W.W.,
Specific heat of liquids. II.,
Zhur. Obshchei Khim., 1934, 4, 1027-1033. [all data]
de Kolossowsky and Udowenko, 1933
de Kolossowsky, N.A.; Udowenko, W.W.,
Mesure des chaleurs specifique moleculaires de quelques liquides,
Compt. rend., 1933, 197, 519-520. [all data]
Timmermans, 1952
Timmermans, J.,
Freezing points of organic compounds. VVI New determinations.,
Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]
Timmermans, 1935
Timmermans, J.,
Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds.,
Bull. Soc. Chim. Belg., 1935, 44, 17-40. [all data]
Timmermans, 1934
Timmermans, J.,
Theory of Concentrated Solutions XII.,
Bull. Soc. Chim. Belg., 1934, 43, 626. [all data]
Timmermans, 1911
Timmermans, J.,
Researches on the freezing point of organic liquid compounds,
Bull. Soc. Chim. Belg., 1911, 25, 300. [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]
Mathews, 1926
Mathews, J.H.,
The accurate measurement of heats of vaporization of liquids,
J. Am. Chem. Soc., 1926, 48, 562-576. [all data]
Fárková and Wichterle, 1993
Fárková, J.; Wichterle, I.,
Vapour pressures of some ethyl and propyl esters of fatty acids,
Fluid Phase Equilibria, 1993, 90, 1, 143-148, https://doi.org/10.1016/0378-3812(93)85009-B
. [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]
Dykyj, 1970
Dykyj, J.,
Petrochemica, 1970, 10, 2, 51. [all data]
Cihlár, Hynek, et al., 1976
Cihlár, J.; Hynek, V.; Svoboda, V.; Holub, R.,
Heats of vaporization of alkyl esters of formic acid,
Collect. Czech. Chem. Commun., 1976, 41, 1, 1-6, https://doi.org/10.1135/cccc19760001
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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