Ethylamine
- Formula: C2H7N
- Molecular weight: 45.0837
- IUPAC Standard InChIKey: QUSNBJAOOMFDIB-UHFFFAOYSA-N
- CAS Registry Number: 75-04-7
- 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: Ethanamine; Aminoethane; Monoethylamine; 1-Aminoethane; C2H5NH2; Aethylamine; Etilamina; Etyloamina; UN 1036
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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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 291. ± 2. | K | AVG | N/A | Average of 17 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 191. ± 3. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 456.55 | K | N/A | Pohland and Mehl, 1933 | Uncertainty assigned by TRC = 1. K; TRC |
Tc | 456.35 | K | N/A | Berthoud, 1917 | Uncertainty assigned by TRC = 1.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 55.5400 | atm | N/A | Berthoud, 1917 | Uncertainty assigned by TRC = 0.4000 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 5.408 | mol/l | N/A | Pohland and Mehl, 1933 | Uncertainty assigned by TRC = 0.22 mol/l; by extrapolation of rectilinera diamters to Tc; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.93 | 282. | A | Stephenson and Malanowski, 1987 | Based on data from 213. to 297. K.; AC |
6.50 | 305. | A | Stephenson and Malanowski, 1987 | Based on data from 290. to 449. K.; AC |
6.60 | 306. | A | Stephenson and Malanowski, 1987 | Based on data from 291. to 387. K.; AC |
6.19 | 392. | A | Stephenson and Malanowski, 1987 | Based on data from 377. to 456. K.; AC |
6.96 | 281. | N/A | Bittrich, Kauer, et al., 1962 | Based on data from 275. to 288. K.; AC |
6.91 | 275. | N/A | Stull, 1947 | Based on data from 190. to 290. K.; AC |
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 |
---|---|---|---|---|---|
190.8 to 289.8 | 4.45015 | 1121.445 | -37.854 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
289.8 to 449. | 4.52442 | 1203.822 | -23.716 | Stull, 1947 | 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.
Pohland and Mehl, 1933
Pohland, E.; Mehl, W.,
Physical Properties of Ethylamine.,
Z. Phys. Chem., Abt. A, 1933, 164, 48. [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]
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]
Bittrich, Kauer, et al., 1962
Bittrich, H.J.; Kauer, E.; Kraft, M.; Sch«65533»ppe, G.; S«65533»ll, W.; Ullrich, A.,
Die Dampfdr«65533»cke der «65533»thylamine,
J. Prakt. Chem., 1962, 17, 5-6, 250-262, https://doi.org/10.1002/prac.19620170502
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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