Triethylamine
- Formula: C6H15N
- Molecular weight: 101.1900
- IUPAC Standard InChIKey: ZMANZCXQSJIPKH-UHFFFAOYSA-N
- CAS Registry Number: 121-44-8
- 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: Ethanamine, N,N-diethyl-; (C2H5)3N; (Diethylamino)ethane; N,N-Diethylethanamine; TEN; Triaethylamin; Trietilamina; UN 1296; 1069-58-5 (maleate); 554-68-7 (chloride)
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Gas phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics 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: Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -134.1 | kJ/mol | N/A | Baroody and Carpenter, 1972 | Value computed using ΔfHliquid° value of -169 kj/mol from Baroody and Carpenter, 1972 and ΔvapH° value of 34.94±0.06 kj/mol from missing citation. |
ΔfH°gas | -92.9 ± 0.5 | kJ/mol | N/A | Lebedeva, 1966 | Value computed using ΔfHliquid° value of -127.8±0.54 kj/mol from Lebedeva, 1966 and ΔvapH° value of 34.94±0.06 kj/mol from missing citation. |
ΔfH°gas | -143.1 | kJ/mol | N/A | Lemoult, 1907 | Value computed using ΔfHliquid° value of -178 kj/mol from Lemoult, 1907 and ΔvapH° value of 34.94±0.06 kj/mol from missing citation. |
Phase change data
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 362.2 ± 0.6 | K | AVG | N/A | Average of 28 out of 30 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 158.45 | K | N/A | Timmermans, 1952 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 158. | K | N/A | Joukovsky, 1934 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 158.45 | K | N/A | Timmermans and Hennaut-Roland, 1932 | Uncertainty assigned by TRC = 1. K; TRC |
Tfus | 158.4 | K | N/A | Timmermans, 1914 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 535.6 ± 0.3 | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.54 | mol/l | N/A | Herz and Neukirch, 1923 | Uncertainty assigned by TRC = 0.02 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 35.1 ± 0.5 | kJ/mol | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
31.01 | 362.1 | N/A | Majer and Svoboda, 1985 | |
33.4 ± 0.2 | 313. | N/A | Mokbel, Razzouk, et al., 2009 | Based on data from 273. to 353. K.; AC |
33.9 | 325. | EB | WANG, FANG, et al., 2006 | Based on data from 310. to 362. K.; AC |
35.2 ± 0.9 | 275. | N/A | Baev, 2001 | Based on data from 231. to 319. K.; AC |
34.1 | 317. | EB | Dutt, Kahol, et al., 1990 | Based on data from 302. to 338. K.; AC |
34.6 | 311. | N/A | Stephenson and Malanowski, 1987 | Based on data from 298. to 324. K.; AC |
33.9 ± 0.1 | 313. | C | Majer, Svoboda, et al., 1979 | AC |
33.0 ± 0.2 | 328. | C | Majer, Svoboda, et al., 1979 | AC |
32.2 ± 0.1 | 343. | C | Majer, Svoboda, et al., 1979 | AC |
31.3 ± 0.2 | 358. | C | Majer, Svoboda, et al., 1979 | AC |
34.8 | 318. | EB | Majer, Svoboda, et al., 1979 | Based on data from 303. to 361. K.; AC |
33.3 | 339. | N/A | Bayles and Letcher, 1971 | Based on data from 324. to 357. K.; AC |
33.0 | 311. | N/A | Thompson and Linnett, 1936 | Based on data from 285. to 337. K.; AC |
33.18 | 363.3 | V | Thompson and Linnett, 1936, 2 | ALS |
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 |
---|---|---|---|---|---|
298. to 358. | 50.32 | 0.2684 | 535.6 | Majer and Svoboda, 1985 |
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 |
---|---|---|---|---|---|
323. to 367.8 | 2.98368 | 695.814 | -128.271 | Bittrich and Kauer, 1962 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 7.53 ± 0.10 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 981.8 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 951. | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.47 ± 0.04 | PE | Mathis and Compton, 1996 | LL |
7.53 ± 0.10 | LS | Mathis and Compton, 1996 | LL |
7.3 | PE | Aue and Bowers, 1979 | LLK |
7.1 ± 0.1 | PE | Aue, Webb, et al., 1976 | LLK |
7.20 ± 0.09 | PE | Aue, Webb, et al., 1975 | LLK |
7.84 | PE | Al-Joboury and Turner, 1964 | RDSH |
7.50 ± 0.02 | PI | Watanabe and Mottl, 1957 | RDSH |
8.03 | PE | Zverev and Titova, 1996 | Vertical value; LL |
8.24 ± 0.04 | PE | Mathis and Compton, 1996 | Vertical value; LL |
8.08 | PE | Utsunomiya, Kobayashi, et al., 1976 | Vertical value; LLK |
8.19 ± 0.05 | PE | Leavell, Steichen, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CH3+ | 16.7 | (C2H5)2NCH | EI | SenSharma and Franklin, 1973 | LLK |
C4H10N+ | 13.14 | C2H5 | EI | Plotnikov, Bogolyubov, et al., 1969 | RDSH |
C5H12N+ | 11.48 | CH3 | EI | Plotnikov, Bogolyubov, et al., 1969 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Baroody and Carpenter, 1972
Baroody, E.E.; Carpenter, G.A.,
Heats of formation of propellant compounds (U), Rpt. Naval Ordnance Systems Command Task No. 331-003/067-1/UR2402-001 for Naval Ordance Station, Indian Head, MD, 1972, 1-9. [all data]
Lebedeva, 1966
Lebedeva, N.D.,
Heats of combustion and formation of aliphatic tertiary amine homologues,
Russ. J. Phys. Chem. (Engl. Transl.), 1966, 40, 1465-1467. [all data]
Lemoult, 1907
Lemoult, M.P.,
Recherches theoriques et experimentales sur les chaleurs de combustion et de formation des composes organiques,
Ann. Chim. Phys., 1907, 12, 395-432. [all data]
Timmermans, 1952
Timmermans, J.,
Freezing points of organic compounds. VVI New determinations.,
Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]
Joukovsky, 1934
Joukovsky, N.I.,
Experimental Study of the Theory of Concentrated Solutions. XI. Thermodynamic Properties of Concentrated Solutions of Aliphatic Organic Compounds Containing Nitrogen.,
Bull. Soc. Chim. Belg., 1934, 43, 397. [all data]
Timmermans and Hennaut-Roland, 1932
Timmermans, J.; Hennaut-Roland, M.,
The Work of the International Bureau of Physical-Chemical Standards. V. Study of the Physical Constants of Twenty Organic Compounds.,
J. Chim. Phys. Phys.-Chim. Biol., 1932, 29, 529-68. [all data]
Timmermans, 1914
Timmermans, J.,
Freezing temperature of organic compounds. II.,
Bull. Soc. Chim. Belg., 1914, 27, 334. [all data]
Herz and Neukirch, 1923
Herz, W.; Neukirch, E.,
On Knowldge of the Critical State,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1923, 104, 433-50. [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]
Mokbel, Razzouk, et al., 2009
Mokbel, Ilham; Razzouk, Antonio; Sawaya, Terufat; Jose, Jacques,
Experimental Vapor Pressures of 2-Phenylethylamine, Benzylamine, Triethylamine, and cis -2,6-Dimethylpiperidine in the Range between 0.2 Pa and 75 kPa,
J. Chem. Eng. Data, 2009, 54, 3, 819-822, https://doi.org/10.1021/je800603z
. [all data]
WANG, FANG, et al., 2006
WANG, Z.; FANG, W.; LIN, R.; GUO, Y.; ZHOU, X.,
Volatility of blended fuel of endothermic hydrocarbon fuel and triethylamine,
Fuel, 2006, 85, 12-13, 1794-1797, https://doi.org/10.1016/j.fuel.2006.02.011
. [all data]
Baev, 2001
Baev, A.K.,
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 2001, 44, 1, 3. [all data]
Dutt, Kahol, et al., 1990
Dutt, N.V.K.; Kahol, A.P.; Reddy, P.J.; Raghunandanan, K.S.,
Isobaric vapor-liquid equilibria for the binary systems of benzene/triethylamine, benzene/trimethyl phosphite, and triethylamine/trimethyl phosphite,
J. Chem. Eng. Data, 1990, 35, 2, 114-117, https://doi.org/10.1021/je00060a004
. [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]
Majer, Svoboda, et al., 1979
Majer, Vladimír; Svoboda, Václav; Koubek, Josef; Pick, Jirí,
Temperature dependence of heats of vaporization, saturated vapour pressures and cohesive energies for a group of amines,
Collect. Czech. Chem. Commun., 1979, 44, 12, 3521-3528, https://doi.org/10.1135/cccc19793521
. [all data]
Bayles and Letcher, 1971
Bayles, John W.; Letcher, Trevor M.,
Thermodynamics of some binary liquid mixtures containing aliphatic amines,
J. Chem. Eng. Data, 1971, 16, 3, 266-271, https://doi.org/10.1021/je60050a026
. [all data]
Thompson and Linnett, 1936
Thompson, H.W.; Linnett, J.W.,
The vapour pressures and association of some metallic and non-metallic alkyls,
Trans. Faraday Soc., 1936, 32, 681, https://doi.org/10.1039/tf9363200681
. [all data]
Thompson and Linnett, 1936, 2
Thompson, H.W.; Linnett, J.W.,
The vapour pressures and association of some metallic and non-metallic alkyls,
Trans. Faraday Soc., 1936, 32, 681-685. [all data]
Bittrich and Kauer, 1962
Bittrich, H.J.; Kauer, E.,
Zur Thermodynamik des Systems Diathylamin-Triathylamin. I. Das Flussigkeits-Dampf-Gleichgewicht,
Z. Phys. Chem. (Frankfurt/Main), 1962, 219, 224-238. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Mathis and Compton, 1996
Mathis, J.E.; Compton, R.N.,
Single and multiple photon ionization of triethylamine,
J. Chem. Phys., 1996, 104, 8341. [all data]
Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T.,
Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements
in Ions Chemistry,, ed. M.T. Bowers, 1979. [all data]
Aue, Webb, et al., 1976
Aue, D.H.; Webb, H.M.; Bowers, M.T.,
Quantitative proton affinities, ionization potentials, and hydrogen affinities of alkylamines,
J. Am. Chem. Soc., 1976, 98, 311. [all data]
Aue, Webb, et al., 1975
Aue, D.H.; Webb, H.M.; Bowers, M.T.,
Photoelectron spectrum and gas-phase basicity of manxine. Evidence for a planar bridgehead nitrogen,
J. Am. Chem. Soc., 1975, 97, 4136. [all data]
Al-Joboury and Turner, 1964
Al-Joboury, M.I.; Turner, D.W.,
Molecular photoelectron spectroscopy. Part II. A summary of ionization potentials,
J. Chem. Soc., 1964, 4434. [all data]
Watanabe and Mottl, 1957
Watanabe, K.; Mottl, J.R.,
Ionization potentials of ammonia and some amines,
J. Chem. Phys., 1957, 26, 1773. [all data]
Zverev and Titova, 1996
Zverev, V.V.; Titova, Z.S.,
Theoretical and experimental investigation of stereoelectronic interactions in H-complexes of sulfenamide derivatives,
Izv. Akad. Nauk Ser. Khim., 1996, 2894. [all data]
Utsunomiya, Kobayashi, et al., 1976
Utsunomiya, C.; Kobayashi, T.; Nagakura, S.,
Photoelectron spectra of electron donor-acceptor complexes between bromine and alkylamines,
Chem. Phys. Lett., 1976, 39, 245. [all data]
Leavell, Steichen, et al., 1973
Leavell, S.; Steichen, J.; Franklin, J.L.,
Photoelectron spectra of intramolecularly hydrogen bonded compounds,
J. Chem. Phys., 1973, 59, 4343. [all data]
SenSharma and Franklin, 1973
SenSharma, D.K.; Franklin, J.L.,
Heat of formation of free radicals by mass spectrometry,
J. Am. Chem. Soc., 1973, 95, 6562. [all data]
Plotnikov, Bogolyubov, et al., 1969
Plotnikov, V.F.; Bogolyubov, G.M.; Maretina, I.A.; Petrov, A.A.,
Organic derivatives of elements of Groups V and VI. V. Mass spectra of 1-buten-3-ynylamines,
Zh. Org. Khim., 1969, 5, 1137, In original 1157. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas 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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