Butanal
- Formula: C4H8O
- Molecular weight: 72.1057
- IUPAC Standard InChIKey: ZTQSAGDEMFDKMZ-UHFFFAOYSA-N
- CAS Registry Number: 123-72-8
- 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: Butyraldehyde; n-Butanal; n-Butyl aldehyde; n-Butyraldehyde; Butal; Butaldehyde; Butanaldehyde; Butyl aldehyde; Butyral; Butyric aldehyde; Butyrylaldehyde; n-C3H7CHO; Aldehyde butyrique; Aldeide butirrica; Butalyde; Butyraldehyd; NCI-C56291; UN 1129; 1-Butanal; Butan-1-al; NSC 62779
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Gas phase thermochemistry data
Go To: Top, Phase change data, Henry's Law data, Gas phase ion energetics 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -211.8 ± 0.92 | kJ/mol | Cm | Wiberg, Crocker, et al., 1991 | ALS |
ΔfH°gas | -204.4 ± 1.4 | kJ/mol | Chyd | Buckley and Cox, 1967 | ALS |
ΔfH°gas | -206.7 | kJ/mol | N/A | Nicholson, 1960 | Value computed using ΔfHliquid° value of -240.3 kj/mol from Nicholson, 1960 and ΔvapH° value of 33.6 kj/mol from Wiberg, Crocker, et al., 1991.; DRB |
ΔfH°gas | -205.1 | kJ/mol | N/A | Tjebbes, 1960 | Value computed using ΔfHliquid° value of -238.7±0.7 kj/mol from Tjebbes, 1960 and ΔvapH° value of 33.6 kj/mol from Wiberg, Crocker, et al., 1991.; DRB |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 344.8 ± 4.2 | J/mol*K | N/A | Chermin, 1961 | This value calculated from calorimetric data is close to value of 345.5(2.3) J/mol*K obtained from equilibrium measurements [ Buckley E., 1967].; GT |
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
DRB - Donald R. Burgess, Jr.
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 |
---|---|---|---|---|---|
Tboil | 348. ± 2. | K | AVG | N/A | Average of 31 out of 33 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 176. ± 2. | K | AVG | N/A | Average of 8 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 176.28 | K | N/A | Vasil'ev and Lebedev, 1989 | Uncertainty assigned by TRC = 0.02 K; corrected to 100 % purity by extrapolation; TRC |
Ttriple | 176.8 | K | N/A | Wilhoit, Chao, et al., 1985 | Uncertainty assigned by TRC = 0.2 K; TRC |
Ttriple | 176.8 | K | N/A | Parks, Kennedy, et al., 1956 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 537.1 | K | N/A | Anselme and Teja, 1990 | Uncertainty assigned by TRC = 4. K; TRC |
Tc | 537.2 | K | N/A | Teja and Rosenthal, 1990 | Uncertainty assigned by TRC = 0.8 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 43.20 | bar | N/A | Teja and Rosenthal, 1990 | Uncertainty assigned by TRC = 1.00 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.88 | mol/l | N/A | Anselme and Teja, 1990 | Uncertainty assigned by TRC = 0.07 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 33.2 | kJ/mol | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 313. to 353. K.; AC |
ΔvapH° | 33.6 | kJ/mol | N/A | Wiberg, Crocker, et al., 1991 | DRB |
ΔvapH° | 33.7 ± 0.4 | kJ/mol | EB | Buckley and Cox, 1967, 2 | See also Verevkin, Krasnykh, et al., 2003.; AC |
ΔvapH° | 33.7 ± 0.4 | kJ/mol | V | Buckley and Cox, 1967 | ALS |
ΔvapH° | 33.7 | kJ/mol | N/A | Buckley and Cox, 1967 | DRB |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
34.2 | 308. | A | Stephenson and Malanowski, 1987 | Based on data from 293. to 349. K.; AC |
32.9 | 339. | EB | Wojtasinski, 1963 | Based on data from 330. to 348. K.; AC |
33.3 | 319. | N/A | Seprakova, Paulech, et al., 1959 | Based on data from 304. to 347. K. See also Boublik, Fried, et al., 1984.; AC |
33.9 | 306. | N/A | Kuchinskaya, 1938 | Based on data from 258. to 353. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
303.86 to 347.18 | 3.59112 | 952.851 | -82.569 | Seprakova, Paulech, et al., 1959, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
10.773 | 176.28 | Vasil'ev and Lebedev, 1989, 2 | DH |
11.09 | 176.8 | Domalski and Hearing, 1996 | See also Vasil'ev and Lebedev, 1989.; AC |
11.104 | 176.8 | Parks, Kennedy, et al., 1956, 2 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
61.11 | 176.28 | Vasil'ev and Lebedev, 1989, 2 | DH |
62.81 | 176.8 | Parks, Kennedy, et al., 1956, 2 | DH |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.0769 | 192.2 | liquid | liquid | Vasil'ev and Lebedev, 1989, 2 | T = 180 to 210 K.; DH |
0.0634 | 284.8 | liquid | liquid | Vasil'ev and Lebedev, 1989, 2 | T = 260 to 280 K.; DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.388 | 192.2 | liquid | liquid | Vasil'ev and Lebedev, 1989, 2 | T; DH |
0.223 | 284.8 | liquid | liquid | Vasil'ev and Lebedev, 1989, 2 | T; DH |
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 |
---|---|---|---|---|
9.6 | 6200. | M | N/A | The data from Table 1 by missing citation was used to redo the regression analysis. The data for acetone in their Table 2 is wrong. |
5.4 | 4000. | X | N/A | |
8.6 | M | Buttery, Ling, et al., 1969 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C4H8O+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.82 ± 0.04 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 792.7 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 760.8 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.000694 | EFD | Desfrancois, Abdoul-Carime, et al., 1994 | EA: 0.7 meV. Dipole-bound state.; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.83 | PI | Traeger and McAdoo, 1986 | LBLHLM |
9.8 | EI | McAdoo and Hudson, 1983 | LBLHLM |
9.73 ± 0.015 | EI | El-Sherbini, Allam, et al., 1981 | LLK |
9.836 ± 0.005 | PE | Hernandez, Masclet, et al., 1977 | LLK |
9.73 ± 0.03 | PE | Cocksey, Eland, et al., 1971 | LLK |
9.86 ± 0.02 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
9.85 | PE | Benoit and Harrison, 1977 | Vertical value; LLK |
9.83 | PE | Kimura, Katsumata, et al., 1975 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H3O+ | 10.19 | C2H5 | PI | Traeger and McAdoo, 1986 | LBLHLM |
C2H4O+ | 10.52 | C2H4 | EI | Holmes, Terlouw, et al., 1976 | LLK |
C3H5O+ | 10.22 | ? | EI | Mouvier and Hernandez, 1975 | LLK |
De-protonation reactions
C4H7O- + =
By formula: C4H7O- + H+ = C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1526. ± 8.8 | kJ/mol | D-EA | Alconcel, Deyerl, et al., 2001 | gas phase; B |
ΔrH° | 1523. ± 9.6 | kJ/mol | D-EA | Zimmerman, Reed, et al., 1977 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1499. ± 9.6 | kJ/mol | H-TS | Alconcel, Deyerl, et al., 2001 | gas phase; B |
ΔrG° | 1496. ± 10. | kJ/mol | H-TS | Zimmerman, Reed, et al., 1977 | gas phase; B |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M.,
Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups,
J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]
Buckley and Cox, 1967
Buckley, E.; Cox, J.D.,
Chemical equilibria. Part 2.-Dehydrogenation of propanol and butanol,
Trans. Faraday Soc., 1967, 63, 895-901. [all data]
Nicholson, 1960
Nicholson, G.R.,
478. The heats of combustion of butanal and heptanal,
J. Chem. Soc., 1960, 2377-2378. [all data]
Tjebbes, 1960
Tjebbes, J.,
Heats of combustion of butannal and some related compounds,
Acta Chem. Scand., 1960, 14, 180-188. [all data]
Chermin, 1961
Chermin, H.A.G.,
Thermo data for petrochemicals. Part 27: Gaseous normal aldehydes. The important thermo properties are presented for all the gaseous normal aldehydes from formaldehyde through decaldehyde,
Pet. Refin., 1961, 40, 181-184. [all data]
Buckley E., 1967
Buckley E.,
Chemical equilibria. Part 2. Dehydrogenation of propanol and butanol,
Trans. Faraday Soc., 1967, 63, 895-901. [all data]
Vasil'ev and Lebedev, 1989
Vasil'ev, V.G.; Lebedev, B.V.,
Thermodynamics of butanal in the temperature range 0-330 K,
Zh. Obshch. Khim., 1989, 59, 11, 2415. [all data]
Wilhoit, Chao, et al., 1985
Wilhoit, R.C.; Chao, J.; Hall, K.R.,
Thermodynamic Properties of Key Organic Compounds in the Carbon Range C1 to C4. Part 1. Properties of Condensed Phases,
J. Phys. Chem. Ref. Data, 1985, 14, 1. [all data]
Parks, Kennedy, et al., 1956
Parks, G.S.; Kennedy, W.D.; Gates, R.R.; Mosley, J.R.; Moore, G.E.; Renquist, M.L.,
Thermal Data on Organic Compounds XXVI. Some Heat Capacity, Entropy and Free Energy Data for Seven Compounds Containing Oxygen,
J. Am. Chem. Soc., 1956, 78, 56-9. [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]
Teja and Rosenthal, 1990
Teja, A.S.; Rosenthal, D.J.,
The Critical Pressures and Temperatures of Twelve Substances Using A Low Residence Time Flow Apparatus,
AIChE Symp. Ser., 1990, 86, 279, 133-7. [all data]
Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G.,
Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times,
Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3
. [all data]
Buckley and Cox, 1967, 2
Buckley, E.; Cox, J.D.,
Chemical equilibria. Part 2.?Dehydrogenation of propanol and butanol,
Trans. Faraday Soc., 1967, 63, 895, https://doi.org/10.1039/tf9676300895
. [all data]
Verevkin, Krasnykh, et al., 2003
Verevkin, Sergey P.; Krasnykh, Eugen L.; Vasiltsova, Tatiana V.; Koutek, Bohumir; Doubsky, Jan; Heintz, Andreas,
Vapor pressures and enthalpies of vaporization of a series of the linear aliphatic aldehydes,
Fluid Phase Equilibria, 2003, 206, 1-2, 331-339, https://doi.org/10.1016/S0378-3812(03)00035-9
. [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]
Wojtasinski, 1963
Wojtasinski, Jerome G.,
Measurement of Total Pressures for Determining Liquid-Vapor Equilibrium Relations of the Binary System Isobutyraldehyde n-Butyraldehyde.,
J. Chem. Eng. Data, 1963, 8, 3, 381-385, https://doi.org/10.1021/je60018a028
. [all data]
Seprakova, Paulech, et al., 1959
Seprakova, M.; Paulech, J.; Dykyj, J.,
Chem. Zvesti, 1959, 13, 5, 313. [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]
Kuchinskaya, 1938
Kuchinskaya, K.,
Vapor pressures of pure substances,
Sbornik Trudov Opytnogo Zavoda im. Akad. S. V. Lebedeva, 1938, 27-30. [all data]
Seprakova, Paulech, et al., 1959, 2
Seprakova, M.; Paulech, J.; Dykyj, J.,
Dampfdruck der Butyraldehyde,
Chem. Zvesti, 1959, 13, 313-316. [all data]
Vasil'ev and Lebedev, 1989, 2
Vasil'ev, V.G.; Lebedev, B.V.,
Thermodynamics of butanal in the temperature range 0-330K,
Zh. Obshch. Khim., 1989, 59(11), 2415-2420. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Parks, Kennedy, et al., 1956, 2
Parks, G.S.; Kennedy, W.D.; Gates, R.R.; Mosley, J.R.; Moore, G.E.; Renquist, M.L.,
Thermal data on organic compounds. XXVI. Some heat capacity, entropy and free energy data for seven compounds containing oxygen.,
Not In System, 1956, 78, 56-59. [all data]
Buttery, Ling, et al., 1969
Buttery, R.G.; Ling, L.C.; Guadagni, D.G.,
Volatilities Aldehydes, Ketones, and Esters in Dilute Water Solution,
J. Agric. Food Chem., 1969, 17, 385-389. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Desfrancois, Abdoul-Carime, et al., 1994
Desfrancois, C.; Abdoul-Carime, H.; Khelifa, N.; Schermann, J.P.,
Fork 1/r to 1/r2 Potentials: Electron Exchange between Rydberg Atoms and Polar Molecules,
Phys. Rev. Lett., 1994, 73, 18, 2436, https://doi.org/10.1103/PhysRevLett.73.2436
. [all data]
Traeger and McAdoo, 1986
Traeger, J.C.; McAdoo, D.J.,
Decomposition thresholds and associated translational energy releases for eight C4H8O+ isomers,
Int. J. Mass Spectrom. Ion Processes, 1986, 68, 35. [all data]
McAdoo and Hudson, 1983
McAdoo, D.J.; Hudson, C.E.,
The decompositions of metastable [C4H8O]+ ions and the [C4H8O]+ potential surface,
Org. Mass Spectrom., 1983, 18, 466. [all data]
El-Sherbini, Allam, et al., 1981
El-Sherbini, T.M.; Allam, S.H.; Migahed, M.D.; Dawoud, A.M.,
Mass spectrometric investigation of aliphatic aldehydes,
Z. Naturforsch. A:, 1981, 36, 1334. [all data]
Hernandez, Masclet, et al., 1977
Hernandez, R.; Masclet, P.; Mouvier, G.,
Spectroscopie de photoelectrons d'aldehydes et de cetones aliphatiques,
J. Electron Spectrosc. Relat. Phenom., 1977, 10, 333. [all data]
Cocksey, Eland, et al., 1971
Cocksey, B.J.; Eland, J.H.D.; Danby, C.J.,
The effect of alkyl substitution on ionisation potential,
J. Chem. Soc., 1971, (B), 790. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G.,
Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules,
J. Am. Chem. Soc., 1977, 99, 3980. [all data]
Kimura, Katsumata, et al., 1975
Kimura, K.; Katsumata, S.; Yamazaki, T.; Wakabayashi, H.,
UV photoelectron spectra and sum rule consideration; out-of-plane orbitals of unsaturated compounds with planar-skeleton structure,
J. Electron Spectrosc. Relat. Phenom., 1975, 6, 41. [all data]
Holmes, Terlouw, et al., 1976
Holmes, J.L.; Terlouw, J.K.; Lossing, F.P.,
The thermochemistry of C2H4O+ ions,
J. Phys. Chem., 1976, 80, 2860. [all data]
Mouvier and Hernandez, 1975
Mouvier, G.; Hernandez, R.,
Ionisation and appearance potentials of alkylketones,
Org. Mass Spectrom., 1975, 10, 958. [all data]
Alconcel, Deyerl, et al., 2001
Alconcel, L.S.; Deyerl, H.J.; Continetti, R.E.,
Effects of alkyl substitution on the energetics of enolate anions and radicals,
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. [all data]
Zimmerman, Reed, et al., 1977
Zimmerman, A.H.; Reed, K.J.; Brauman, J.I.,
Photodetachment of electrons from enolate anions. Gas phase electron affinities of enolate radicals,
J. Am. Chem. Soc., 1977, 99, 7203. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity IE (evaluated) Recommended ionization energy Pc Critical pressure S°gas Entropy of gas at standard conditions Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction 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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