1-Butanamine, N-butyl-
- Formula: C8H19N
- Molecular weight: 129.2432
- IUPAC Standard InChIKey: JQVDAXLFBXTEQA-UHFFFAOYSA-N
- CAS Registry Number: 111-92-2
- 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: Dibutylamine; Di-n-butylamine; N-Dibutylamine; (n-C4H9)2NH; n-Butyl-1-butanamine; di-Normal-butylamine; Dibutilamina; UN 2248; Butylamine, di-n-
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Condensed phase thermochemistry data
Go To: Top, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -50.74 ± 0.60 | kcal/mol | Ccb | Suradi, Hacking, et al., 1981 | |
ΔfH°liquid | -49.27 ± 0.09 | kcal/mol | Ccb | Lebedeva, Katin, et al., 1971 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1350.7 ± 0.53 | kcal/mol | Ccb | Suradi, Hacking, et al., 1981 | |
ΔcH°liquid | -1352.16 ± 0.10 | kcal/mol | Ccb | Lebedeva, Katin, et al., 1971 |
Phase change data
Go To: Top, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 430. ± 20. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 211.25 | K | N/A | Timmermans, 1952 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 595.8 | K | N/A | Majer and Svoboda, 1985 | |
Tc | 607.5 | K | N/A | Toczylkin. L.S. and Young, 1980 | Uncertainty assigned by TRC = 0.6 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 30.69 | atm | N/A | Toczylkin. L.S. and Young, 1980 | Uncertainty assigned by TRC = 0.3066 atm; Visual; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 11. ± 2. | kcal/mol | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.187 | 432.8 | N/A | Majer and Svoboda, 1985 | |
11.0 | 358. | A | Stephenson and Malanowski, 1987 | Based on data from 343. to 479. K.; AC |
11.0 ± 0.02 | 343. | C | Petros, Majer, et al., 1979 | AC |
10.7 ± 0.02 | 358. | C | Petros, Majer, et al., 1979 | AC |
11.5 | 291. | V | Lebedeva, Katin, et al., 1971 | ALS |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kcal/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kcal/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
298. to 358. | 17.00 | 0.3042 | 595.8 | Majer and Svoboda, 1985 |
References
Go To: Top, 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.
Suradi, Hacking, et al., 1981
Suradi, S.; Hacking, J.M.; Pilcher, G.; Gumrukcu, I.; Lappert, M.F.,
Enthalpies of combustion of five sterically hindered amines,
J. Chem. Thermodyn., 1981, 13, 857-861. [all data]
Lebedeva, Katin, et al., 1971
Lebedeva, N.D.; Katin, Y.A.; Akhmedova, G.Y.,
Enthalpies of formation of dipropylamine, di-isopropylamine, dibutylamine, and di-isobutylamine,
Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 771-772. [all data]
Timmermans, 1952
Timmermans, J.,
Freezing points of organic compounds. VVI New determinations.,
Bull. Soc. Chim. Belg., 1952, 61, 393. [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]
Toczylkin. L.S. and Young, 1980
Toczylkin. L.S.; Young, C.L.,
Gas-liquid criticl temperatures of mixtures containing electron donors. II. Amine mixtures,
J. Chem. Thermodyn., 1980, 12, 365. [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]
Petros, Majer, et al., 1979
Petros, Libor; Majer, Vladimír; Koubek, Josef; Svoboda, Václav; Pick, Jirí,
Temperature dependence of heats of vaporization, saturated vapour pressures and cohesive energies of secondary amines,
Collect. Czech. Chem. Commun., 1979, 44, 12, 3533-3540, https://doi.org/10.1135/cccc19793533
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid 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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