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, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible 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 by: Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -32.05 | kcal/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 | -22.2 ± 0.1 | kcal/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 | -34.20 | kcal/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. |
Condensed phase thermochemistry data
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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 | -40.5 | kcal/mol | Ccb | Baroody and Carpenter, 1972 | ALS |
ΔfH°liquid | -30.54 ± 0.13 | kcal/mol | Ccb | Lebedeva, 1966 | ALS |
ΔfH°liquid | -42.6 | kcal/mol | Ccb | Lemoult, 1907 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1046.15 ± 0.13 | kcal/mol | Ccb | Lebedeva, 1966 | ALS |
ΔcH°liquid | -1040.7 | kcal/mol | Ccb | Lemoult, 1907 | ALS |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
51.728 | 298.15 | Grolier, Roux-Desgranges, et al., 1993 | DH |
52.127 | 298.15 | Hepler, Kooner, et al., 1985 | DH |
42.30 | 298. | von Reis, 1881 | T = 293 to 378 K.; DH |
Phase change data
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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° | 8.4 ± 0.1 | kcal/mol | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.412 | 362.1 | N/A | Majer and Svoboda, 1985 | |
7.98 ± 0.05 | 313. | N/A | Mokbel, Razzouk, et al., 2009 | Based on data from 273. to 353. K.; AC |
8.10 | 325. | EB | WANG, FANG, et al., 2006 | Based on data from 310. to 362. K.; AC |
8.4 ± 0.2 | 275. | N/A | Baev, 2001 | Based on data from 231. to 319. K.; AC |
8.15 | 317. | EB | Dutt, Kahol, et al., 1990 | Based on data from 302. to 338. K.; AC |
8.27 | 311. | N/A | Stephenson and Malanowski, 1987 | Based on data from 298. to 324. K.; AC |
8.10 ± 0.02 | 313. | C | Majer, Svoboda, et al., 1979 | AC |
7.89 ± 0.05 | 328. | C | Majer, Svoboda, et al., 1979 | AC |
7.70 ± 0.02 | 343. | C | Majer, Svoboda, et al., 1979 | AC |
7.48 ± 0.05 | 358. | C | Majer, Svoboda, et al., 1979 | AC |
8.32 | 318. | EB | Majer, Svoboda, et al., 1979 | Based on data from 303. to 361. K.; AC |
7.96 | 339. | N/A | Bayles and Letcher, 1971 | Based on data from 324. to 357. K.; AC |
7.89 | 311. | N/A | Thompson and Linnett, 1936 | Based on data from 285. to 337. K.; AC |
7.930 | 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)
(kcal/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kcal/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
298. to 358. | 12.03 | 0.2684 | 535.6 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
323. to 367.8 | 2.97797 | 695.814 | -128.271 | Bittrich and Kauer, 1962 | Coefficents calculated by NIST from author's data. |
Reaction thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: C3H9Sn+ + C6H15N = (C3H9Sn+ • C6H15N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 45.7 | kcal/mol | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 33.9 | cal/mol*K | N/A | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
27.9 | 525. | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated |
By formula: C6H16N+ + C6H15N = (C6H16N+ • C6H15N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 23.8 | kcal/mol | PHPMS | Meot-Ner M. and Sieck, 1983 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 41.0 | cal/mol*K | PHPMS | Meot-Ner M. and Sieck, 1983 | gas phase |
Henry's Law data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference |
---|---|---|---|
6.6 | M | N/A |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center, 1998. |
NIST MS number | 291545 |
UV/Visible spectrum
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, IR Spectrum, Mass spectrum (electron ionization), 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina
Spectrum
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Additional Data
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Source | Tannenbaum, Coffin, et al., 1953 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 906 |
Instrument | n.i.g. |
Sample pressure | 0.01-1.8 mm Hg |
Melting point | -114.7 |
Boiling point | 89 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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]
Grolier, Roux-Desgranges, et al., 1993
Grolier, J.-P.E.; Roux-Desgranges, G.; Berkane, M.; Jimenez, E.; Wilhelm, E.,
Heat capacities and densities of mixtures of very polar substances 2. Mixtures containing N,N-dimethylformamide,
J. Chem. Thermodynam., 1993, 25(1), 41-50. [all data]
Hepler, Kooner, et al., 1985
Hepler, L.G.; Kooner, Z.S.; Roux-Desgranges, G.; Grolier, J.-P.E.,
Thermal and volumetric properties of chloroform + triethylamine mixtures and the ideal associated solution model of complex formation,
J. Solution Chem., 1985, 14(8), 579-594. [all data]
von Reis, 1881
von Reis, M.A.,
Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht,
Ann. Physik [3], 1881, 13, 447-464. [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]
Stone and Splinter, 1984
Stone, J.A.; Splinter, D.E.,
A high-pressure mass spectrometric study of the binding of (CH3)3Sn+ to lewis bases in the gas phase,
Int. J. Mass Spectrom. Ion Processes, 1984, 59, 169. [all data]
Meot-Ner M. and Sieck, 1983
Meot-Ner M.; Sieck, L.W.,
The Ionic Hydrogen Bond. 1. Sterically Hindered Bonds. Solvation and Clustering of Sterically Hindered Amines and Pyridines,
J. Am. Chem. Soc., 1983, 105, 10, 2956, https://doi.org/10.1021/ja00348a005
. [all data]
Tannenbaum, Coffin, et al., 1953
Tannenbaum, E.; Coffin, E.M.; Harrison, A.J.,
The far ultraviolet absorption spectra of simple alkyl amines,
J. Chem. Phys., 1953, 21, 2, 311-318. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid T Temperature Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction 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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