Monoethanolamine
- Formula: C2H7NO
- Molecular weight: 61.0831
- IUPAC Standard InChIKey: HZAXFHJVJLSVMW-UHFFFAOYSA-N
- CAS Registry Number: 141-43-5
- 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: Ethanol, 2-amino-; β-Aminoethanol; β-Aminoethyl alcohol; β-Hydroxyethylamine; Aminoethanol; Colamine; Ethanolamine; Ethylolamine; Glycinol; MEA; Olamine; Thiofaco M-50; 2-Amino-1-Ethanol; 2-Aminoethan-1-ol; 2-Aminoethanol; 2-Hydroxyethanamine; 2-Hydroxyethylamine; NH2CH2CH2OH; β-Ethanolamine; Aethanolamin; 2-Aminoaethanol; 2-Aminoetanolo; Etanolamina; Kolamin; Monoaethanolamin; UN 2491; USAF EK-1597; 2-Ethanolamine; 1-Amino-2-hydroxyethane; 2-Aminoethyl alcohol
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -121.3 | kcal/mol | Ccb | Baroody and Carpenter, 1972 |
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 | 443.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 444. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tboil | 444.15 | K | N/A | Anderson and Shimanskaya, 1969 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tboil | 444.0 | K | N/A | Lecat, 1947 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 283.46 | K | N/A | McDonald, Shrader, et al., 1959 | Uncertainty assigned by TRC = 0.05 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 671.4 | K | N/A | Teja and Rosenthal, 1991 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tc | 670. | K | N/A | Anselme and Teja, 1990 | Uncertainty assigned by TRC = 50. K; Tc > 670 K, which was observed with decomposition; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 79.25 | atm | N/A | Teja and Rosenthal, 1991 | Uncertainty assigned by TRC = 0.39 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 13.9 ± 0.8 | kcal/mol | AVG | N/A | Average of 9 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
13.4 | 372. | EB | Kim, Svendsen, et al., 2008 | Based on data from 357. to 435. K.; AC |
14.7 | 325. | A | Stephenson and Malanowski, 1987 | Based on data from 310. to 444. K.; AC |
13.1 | 394. | N/A | McDonald, Shrader, et al., 1959, 2 | Based on data from 379. to 443. K.; AC |
14.1 | 353. | N/A | Matthews, Sumner, et al., 1950 | Based on data from 338. to 443. K. See also Boublik, Fried, et al., 1984.; 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 |
---|---|---|---|---|---|
338.6 to 444.1 | 4.28681 | 1408.873 | -116.093 | Matthews, Sumner, et al., 1950, 2 | Coefficents calculated by NIST from author's data. |
Reaction thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change 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: Robert C. Dunbar
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: Na+ + C2H7NO = (Na+ • C2H7NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 41.8 ± 1.7 | kcal/mol | CIDT | Moision and Armentrout, 2002 |
IR Spectrum
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes
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
View image of digitized spectrum (can be printed in landscape orientation).
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 | Japan AIST/NIMC Database- Spectrum MS-NW-1584 |
NIST MS number | 228293 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), 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]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Anderson and Shimanskaya, 1969
Anderson, A.A.; Shimanskaya, M.V.,
Gas-Liquid Chromatography of some Aliphatic and Heterocyclic Polyfunctional Amines: II. Solution Thermodyn. of Amines in Fix. Phas.,
Latv. PSR Zinat. Akad. Vestis, Kim. Ser., 1969, No. 5, 527. [all data]
Lecat, 1947
Lecat, M.,
Orthobaric Azeotropes of Sulfides,
Bull. Cl. Sci., Acad. R. Belg., 1947, 33, 160-82. [all data]
McDonald, Shrader, et al., 1959
McDonald, R.A.; Shrader, S.A.; Stull, D.R.,
Vapor Pressures and Freezing Points of 30 Organics,
J. Chem. Eng. Data, 1959, 4, 311. [all data]
Teja and Rosenthal, 1991
Teja, A.S.; Rosenthal, D.J.,
The critical pressures and temperatures of ten substances using a low residence time flow apparatus
in Experimental Results for Phase Equilibria and Pure Component Properties, DIPPR DATA Series No. 1, 1991. [all data]
Anselme and Teja, 1990
Anselme, M.J.; Teja, A.S.,
The critical properties of rapidly reacting substances,
AIChE Symp. Ser., 1990, 86, 279, 128-32. [all data]
Kim, Svendsen, et al., 2008
Kim, Inna; Svendsen, Hallvard F.; Børresen, Eli,
Ebulliometric Determination of Vapor-Liquid Equilibria for Pure Water, Monoethanolamine, N -Methyldiethanolamine, 3-(Methylamino)-propylamine, and Their Binary and Ternary Solutions,
J. Chem. Eng. Data, 2008, 53, 11, 2521-2531, https://doi.org/10.1021/je800290k
. [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]
McDonald, Shrader, et al., 1959, 2
McDonald, R.A.; Shrader, S.A.; Stull, D.R.,
Vapor Pressures and Freezing Points of Thirty Pure Organic Compounds.,
J. Chem. Eng. Data, 1959, 4, 4, 311-313, https://doi.org/10.1021/je60004a009
. [all data]
Matthews, Sumner, et al., 1950
Matthews, J.B.; Sumner, J.F.; Moelwyn-Hughes, E.A.,
The vapour pressures of certain liquids,
Trans. Faraday Soc., 1950, 46, 797, https://doi.org/10.1039/tf9504600797
. [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]
Matthews, Sumner, et al., 1950, 2
Matthews, J.B.; Sumner, J.F.; Moelwyn-Hughes, E.A.,
The Vapour Pressures of Certain Liquids,
Trans. Faraday Soc., 1950, 46, 797-803, https://doi.org/10.1039/tf9504600797
. [all data]
Moision and Armentrout, 2002
Moision, R.M.; Armentrout, P.B.,
Experimental and Theoretical Dissection of Sodium Cation/Glycine Interactions,
J. Phys. Chem A, 2002, 106, 43, 10350, https://doi.org/10.1021/jp0216373
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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