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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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
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)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
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. |
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, 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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point 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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