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
- Permanent link for this species. Use this link for bookmarking this species for future reference.
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Gas 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 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
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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:
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. |
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 | Comment |
---|---|---|---|---|
15. | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. | |
39. | X | N/A | ||
130. | 10000. | X | N/A | |
39. | M | N/A |
Gas Chromatography
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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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | C78, Branched paraffin | 130. | 548.9 | Dallos, Sisak, et al., 2000 | He; Column length: 3.3 m |
Packed | C78, Branched paraffin | 130. | 548.9 | Reddy, Dutoit, et al., 1992 | Chromosorb G HP; Column length: 3.3 m |
Packed | Apolane | 130. | 556. | Dutoit, 1991 | Column length: 3.7 m |
Packed | OV-101 | 130. | 527. | Osmialowski, Halkiewicz, et al., 1985 | Ar, Chromosorb W HP; Column length: 1. m |
Packed | Apiezon L | 100. | 557. | Golovnya, Zhuravleva, et al., 1980 | N2, Chromosorb GAW; Column length: 2.7 m |
Packed | PMS-100 | 130. | 546. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PMS-100 | 150. | 544. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PMS-100 | 180. | 544. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | Apiezon L | 100. | 560. | Golovnya and Zhuravleva, 1973 | |
Packed | Squalane | 50. | 546. | Vernon, 1971 | N2 |
Packed | Apiezon L | 130. | 553. | Landault and Guiochon, 1964 | Teflon-Haloport; Column length: 2.26 m |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | PEG-2000 | 120. | 718. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 150. | 716. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 152. | 712. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 179. | 707. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 180. | 707. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 200. | 700. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-1 | 564. | Bartelt, 1997 | 30. m/0.32 mm/5. μm, He, 35. C @ 1. min, 10. K/min; Tend: 270. C |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | OV-101 | 130. | 527. | Qi, Yang, et al., 2000 | |
Packed | Squalane | 100. | 539. | Vernon, 1971 | N2 |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 560. | Chen and Feng, 2007 | Program: not specified |
Capillary | Methyl Silicone | 548. | Savelieva and Zenkevich I., 2003 | Program: not specified |
Capillary | Methyl Silicone | 548. | Zenkevich, 1999 | Program: not specified |
Capillary | SPB-1 | 559. | Flanagan, Streete, et al., 1997 | 60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C |
Capillary | Methyl Silicone | 548. | Zenkevich, Korolenko, et al., 1995 | Program: not specified |
Capillary | SPB-1 | 559. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C |
Capillary | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. | 527. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 712. | Rochat, Egger, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium, 60. C @ 3. min, 8. K/min, 200. C @ 9.5 min |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polyethylene Glycol | 710. | Zenkevich, Korolenko, et al., 1995 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas Chromatography, 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,
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Costas and Patterson, 1985, 2
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Kurnakov, N.S.; Voskresenskaya, N.K.,
Calorimetry of liquid binary systems, Izv. Akad. Nauk SSSR,
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Pohland and Mehl, 1933
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Physical Properties of Ethylamine.,
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The Freezing Points of Organic Substances IV. New Exp. Determinations,
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Determination of Critical Temperatures and Pressures of Amines and Alkyl Chlorides,
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Phase equilibria in the n-hexane + diethylamine system,
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Gas-liquid critical properties. Diethylamine-methanol system,
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The Critical Constants of Conformal Mixtures,
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On Knowldge of the Critical State,
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Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
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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,
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Franks and Watson, 1969
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Calorimetric study of dilute aqueous solutions of dialkylamines: hydration of alkyl groups,
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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.,
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Enthalpies of vaporization of organic compounds,
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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]
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Bittrich and Kauer, 1962, 2
Bittrich, H.J.; Kauer, E.,
Zur Thermodynamik des Systems Diathylamin-Triathylamin. I. Das Flussigkeits-Dampf-Gleichgewicht,
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Dallos, A.; Sisak, A.; Kulcsár, Z.; Kováts, E.,
Pair-wise interactions by gas chromatography VII. Interaction free enthalpies of solutes with secondary alcohol groups,
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Pair-wise interactions by gas chromatography. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups,
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Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases,
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Gas-chromatographic separation of secondary normal alphatic amines,
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Gas-liquid chromatography of some aliphatic and heterocyclic mono- and pollyfunctional amines. VII. Retention indices of amines in some polar and unpolar stationary phases,
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Rochat, S.; Egger, J.; Chaintreau, A.,
Strategy for the identification of key odorants: application to shrimp aroma,
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Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas Chromatography, 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 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 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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