Methylamine
- Formula: CH5N
- Molecular weight: 31.0571
- IUPAC Standard InChIKey: BAVYZALUXZFZLV-UHFFFAOYSA-N
- CAS Registry Number: 74-89-5
- 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. - Isotopologues:
- Other names: Methanamine; Aminomethane; Carbinamine; Monomethylamine; CH3NH2; Mercurialin; Methylaminen; Metilamine; Metyloamina; UN 1061; MMA
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Condensed phase thermochemistry data
Go To: Top, 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:
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ΔfH°liquid | -11.3 ± 0.11 | kcal/mol | N/A | Cox and Pilcher, 1970 | Review; Unpublished work J. Jaffe; ALS |
ΔfH°liquid | -11.3 ± 0.11 | kcal/mol | Ccb | Aston, Siller, et al., 1937 | Unpublished work J. Jaffe; ALS |
ΔfH°liquid | -8.7 | kcal/mol | Ccb | Lemoult, 1907 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -253.54 ± 0.09 | kcal/mol | N/A | Cox and Pilcher, 1970 | Review; Unpublished work J. Jaffe; ALS |
ΔcH°liquid | -253.54 ± 0.09 | kcal/mol | Ccb | Aston, Siller, et al., 1937 | Unpublished work J. Jaffe; ALS |
ΔcH°liquid | -261.4 | kcal/mol | Ccb | Muller, 1910 | At 288 K; ALS |
ΔcH°liquid | -256.9 | kcal/mol | Ccb | Lemoult, 1907 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 35.90 | cal/mol*K | N/A | Aston, Siller, et al., 1937, 2 | For superheated liquid, using extrapolated heat capacities.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
24.331 | 259.28 | Aston, Siller, et al., 1937, 2 | T = 14 to 259 K. Value is unsmoothed experimental datum.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Aston, Siller, et al., 1937
Aston, J.G.; Siller, C.W.; Messerly, G.H.,
Heat capacities and entropies of organic compounds. III. Methylamine from 11.5°K. to the boiling point. Heat of vaporization and vapor pressure. The entropy from molecular data,
J. Am. Chem. Soc., 1937, 59, 1743-17. [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]
Muller, 1910
Muller, J.-A.,
Sur les chaleurs de combustion et les poids specifiques des methylamines,
Ann. Chim. Phys., 1910, 20, 116-130. [all data]
Aston, Siller, et al., 1937, 2
Aston, J.G.; Siller, C.W.; Messerly, G.H.,
Heat capacities and entropies of organic compounds. III. Methylamine from 12K to the boiling point. Heat of vaporization and vapor pressure. The entropy from molecular data,
J. Am. Chem. Soc., 1937, 59, 1743-1751. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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