Ethanamine, N-ethyl-
- Formula: C4H11N
- Molecular weight: 73.1368
- IUPAC Standard InChIKey: HPNMFZURTQLUMO-UHFFFAOYSA-N
- CAS Registry Number: 109-89-7
- 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. - Isotopologues:
- Other names: Diethylamine; N,N-Diethylamine; (C2H5)2NH; DEA; Diaethylamin; Diethamine; Dietilamina; Dwuetyloamina; UN 1154; N-Ethylethanamine
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Gas phase thermochemistry data
Go To: Top, Condensed 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 compiled by: Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -99.8 | kJ/mol | N/A | Lemoult, 1907 | Value computed using ΔfHliquid° value of -131 kj/mol from Lemoult, 1907 and ΔvapH° value of 31.18±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 | -131. | kJ/mol | Ccb | Lemoult, 1907 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -3035. | kJ/mol | Ccb | Lemoult, 1907 | ALS |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
178.1 | 298.15 | Costas and Patterson, 1985 | T = 283.15, 298.15, 313.15 K.; DH |
178.1 | 298.15 | Costas and Patterson, 1985, 2 | DH |
106.3 | 290. | Kurnakov and Voskresenskaya, 1936 | DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
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 | 328.7 ± 0.8 | K | AVG | N/A | Average of 18 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 223.15 | K | N/A | Pohland and Mehl, 1933 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 225.15 | K | N/A | Timmermans and Mattaar, 1921 | Uncertainty assigned by TRC = 1. K; TRC |
Tfus | 223.15 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 223.15 | K | N/A | Berthoud, 1917 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 498. ± 3. | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 37.48 | bar | N/A | Mandlekar, Kay, et al., 1985 | Uncertainty assigned by TRC = 1.00 bar; TRC |
Pc | 37.58 | bar | N/A | Kay and Young, 1976 | Uncertainty assigned by TRC = 0.15 bar; TRC |
Pc | 37.58 | bar | N/A | Kay and Young, 1976, 2 | Uncertainty assigned by TRC = 0.15 bar; TRC |
Pc | 37.4798 | bar | N/A | Kreglewski and Kay, 1969 | Uncertainty assigned by TRC = 0.2068 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.32 | mol/l | N/A | Herz and Neukirch, 1923 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 31.47 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 31.3 ± 0.1 | kJ/mol | C | Majer, Svoboda, et al., 1979 | AC |
ΔvapH° | 32.7 ± 0.2 | kJ/mol | I | Franks and Watson, 1969 | Based on data from 273. to 333. K.; AC |
ΔvapH° | 31.2 ± 0.1 | kJ/mol | C | Wadsö, Heikkilä, et al., 1969 | AC |
ΔvapH° | 31.18 ± 0.06 | kJ/mol | C | Wadso, 1969 | ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
29.06 | 328.7 | N/A | Majer and Svoboda, 1985 | |
31.2 | 315. | A | Stephenson and Malanowski, 1987 | Based on data from 302. to 328. K.; AC |
30.4 | 340. | A | Stephenson and Malanowski, 1987 | Based on data from 325. to 437. K.; AC |
28.4 | 446. | A | Stephenson and Malanowski, 1987 | Based on data from 431. to 496. K.; AC |
30.2 ± 0.1 | 313. | C | Majer, Svoboda, et al., 1979 | AC |
29.1 ± 0.1 | 328. | C | Majer, Svoboda, et al., 1979 | AC |
28.0 ± 0.1 | 343. | C | Majer, Svoboda, et al., 1979 | AC |
31.8 | 307. | N/A | Kilian and Bittrich, 1965 | Based on data from 292. to 313. K. See also Boublik, Fried, et al., 1984.; AC |
31.5 | 319. | N/A | Bittrich and Kauer, 1962 | Based on data from 304. to 323. K. See also Boublik, Fried, et al., 1984.; 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 |
---|---|---|---|---|---|
298. to 343. | 51.41 | 0.3266 | 496.5 | 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 |
---|---|---|---|---|---|
304.60 to 333.73 | 2.86193 | 559.071 | -132.974 | Bittrich and Kauer, 1962, 2 | Coefficents calculated by NIST from author's data. |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Costas and Patterson, 1985
Costas, M.; Patterson, D.,
Heat capacities of water + organic-solvent mixtures, J. Chem. Soc.,
Faraday Trans. 1, 1985, 81, 2381-2398. [all data]
Costas and Patterson, 1985, 2
Costas, M.; Patterson, D.,
Self-association of alcohols in inert solvents, J. Chem. Soc.,
Faraday Trans. 1, 1985, 81, 635-654. [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]
Pohland and Mehl, 1933
Pohland, E.; Mehl, W.,
Physical Properties of Ethylamine.,
Z. Phys. Chem., Abt. A, 1933, 164, 48. [all data]
Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F.,
Freezing points of orgainic substances VI. New experimental determinations.,
Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]
Berthoud, 1917
Berthoud, A.,
Determination of Critical Temperatures and Pressures of Amines and Alkyl Chlorides,
J. Chim. Phys. Phys.-Chim. Biol., 1917, 15, 3. [all data]
Mandlekar, Kay, et al., 1985
Mandlekar, A.V.; Kay, W.B.; Smith, R.L.; Teja, A.S.,
Phase equilibria in the n-hexane + diethylamine system,
Fluid Phase Equilib., 1985, 23, 79. [all data]
Kay and Young, 1976
Kay, W.B.; Young, C.L.,
Gas-liquid critical properties. Diethylamine-methanol system,
Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1976, No. 1, 74. [all data]
Kay and Young, 1976, 2
Kay, W.B.; Young, C.L.,
Gas-liquid critical properties. Diethylamine, 2-butanone (methylethyl ketone) system,
Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1976, No. 1, 76. [all data]
Kreglewski and Kay, 1969
Kreglewski, A.; Kay, W.B.,
The Critical Constants of Conformal Mixtures,
J. Phys. Chem., 1969, 73, 3359. [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]
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]
Franks and Watson, 1969
Franks, F.; Watson, B.,
Calorimetric study of dilute aqueous solutions of dialkylamines: hydration of alkyl groups,
Trans. Faraday Soc., 1969, 65, 2339, https://doi.org/10.1039/tf9696502339
. [all data]
Wadsö, Heikkilä, et al., 1969
Wadsö, Ingemar; Heikkilä, Jussi; Beagley, B.; Aalto, Tarja; Werner, Per-Erik; Junggren, Ulf; Lamm, Bo; Samuelsson, Benny,
Enthalpies of Vaporization of Organic Compounds. III. Amines.,
Acta Chem. Scand., 1969, 23, 2061-2064, https://doi.org/10.3891/acta.chem.scand.23-2061
. [all data]
Wadso, 1969
Wadso, I.,
Enthalpies of vaporization of organic compounds,
Acta Chem. Scand., 1969, 23, 2061. [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]
Kilian and Bittrich, 1965
Kilian, H.; Bittrich, H.J.,
Z. Phys. Chem., 1965, 230, 383. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Bittrich and Kauer, 1962
Bittrich, H.-J.; Kauer, E.,
Z. Phys. Chem. [Frankfurt am Main], 1962, 219, 224. [all data]
Bittrich and Kauer, 1962, 2
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, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, 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 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 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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