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
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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:
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 | -50.61 ± 0.22 | kcal/mol | Cm | Wiberg, Crocker, et al., 1991 | ALS |
ΔfH°gas | -48.85 ± 0.34 | kcal/mol | Chyd | Buckley and Cox, 1967 | ALS |
ΔfH°gas | -49.40 | kcal/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 | -49.02 | kcal/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 | 82.40 ± 1.0 | cal/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 |
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 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 | -58.66 ± 0.20 | kcal/mol | Cm | Wiberg, Crocker, et al., 1991 | ALS |
ΔfH°liquid | -56.90 ± 0.35 | kcal/mol | Chyd | Buckley and Cox, 1967 | ALS |
ΔfH°liquid | -57.43 | kcal/mol | Ccb | Nicholson, 1960 | ALS |
ΔfH°liquid | -57.06 ± 0.17 | kcal/mol | Ccb | Tjebbes, 1960 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -592.05 ± 0.34 | kcal/mol | Ccb | Nicholson, 1960 | Corresponding ΔfHºliquid = -57.41 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -592.42 ± 0.17 | kcal/mol | Ccb | Tjebbes, 1960 | Corresponding ΔfHºliquid = -57.04 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 58.01 | cal/mol*K | N/A | Vasil'ev and Lebedev, 1989 | DH |
S°liquid | 59.01 | cal/mol*K | N/A | Parks, Kennedy, et al., 1956 | Extrapolation below 80 K, 43.93 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
39.36 | 298.15 | Vasil'ev and Lebedev, 1989 | T = 11 to 330 K.; DH |
39.080 | 298.15 | Parks, Kennedy, et al., 1956 | T = 80 to 300 K.; DH |
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, 2 | 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, 2 | 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 | 42.64 | atm | N/A | Teja and Rosenthal, 1990 | Uncertainty assigned by TRC = 0.987 atm; 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° | 7.93 | kcal/mol | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 313. to 353. K.; AC |
ΔvapH° | 8.03 | kcal/mol | N/A | Wiberg, Crocker, et al., 1991 | DRB |
ΔvapH° | 8.05 ± 0.1 | kcal/mol | EB | Buckley and Cox, 1967, 2 | See also Verevkin, Krasnykh, et al., 2003.; AC |
ΔvapH° | 8.1 ± 0.1 | kcal/mol | V | Buckley and Cox, 1967 | ALS |
ΔvapH° | 8.05 | kcal/mol | N/A | Buckley and Cox, 1967 | DRB |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.17 | 308. | A | Stephenson and Malanowski, 1987 | Based on data from 293. to 349. K.; AC |
7.86 | 339. | EB | Wojtasinski, 1963 | Based on data from 330. to 348. K.; AC |
7.96 | 319. | N/A | Seprakova, Paulech, et al., 1959 | Based on data from 304. to 347. K. See also Boublik, Fried, et al., 1984.; AC |
8.10 | 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 (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
303.86 to 347.18 | 3.58541 | 952.851 | -82.569 | Seprakova, Paulech, et al., 1959, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.5748 | 176.28 | Vasil'ev and Lebedev, 1989 | DH |
2.651 | 176.8 | Domalski and Hearing, 1996 | See also Vasil'ev and Lebedev, 1989, 2.; AC |
2.6539 | 176.8 | Parks, Kennedy, et al., 1956 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.61 | 176.28 | Vasil'ev and Lebedev, 1989 | DH |
15.01 | 176.8 | Parks, Kennedy, et al., 1956 | DH |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.0184 | 192.2 | liquid | liquid | Vasil'ev and Lebedev, 1989 | T = 180 to 210 K.; DH |
0.0152 | 284.8 | liquid | liquid | Vasil'ev and Lebedev, 1989 | T = 260 to 280 K.; DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.0927 | 192.2 | liquid | liquid | Vasil'ev and Lebedev, 1989 | T; DH |
0.0533 | 284.8 | liquid | liquid | Vasil'ev and Lebedev, 1989 | T; DH |
Reaction 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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
C4H7O- + =
By formula: C4H7O- + H+ = C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 364.8 ± 2.1 | kcal/mol | D-EA | Alconcel, Deyerl, et al., 2001 | gas phase; B |
ΔrH° | 364.1 ± 2.3 | kcal/mol | D-EA | Zimmerman, Reed, et al., 1977 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 358.2 ± 2.3 | kcal/mol | H-TS | Alconcel, Deyerl, et al., 2001 | gas phase; B |
ΔrG° | 357.6 ± 2.5 | kcal/mol | H-TS | Zimmerman, Reed, et al., 1977 | gas phase; B |
By formula: NO- + C4H8O = (NO- • C4H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 39.2 | kcal/mol | ICR | Reents and Freiser, 1981 | gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M |
By formula: C6H14O2 + H2O = C4H8O + 2CH4O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 8.65 ± 0.03 | kcal/mol | Cm | Wiberg, Morgan, et al., 1994 | liquid phase; ALS |
ΔrH° | 8.732 ± 0.023 | kcal/mol | Eqk | Wiberg and Squires, 1981 | liquid phase; ALS |
By formula: H2 + C4H6O = C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -24.91 ± 0.10 | kcal/mol | Chyd | Dolliver, Gresham, et al., 1938 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -25.2 ± 0.1 kcal/mol; At 355°K; ALS |
(CAS Reg. No. 26232-84-8 • 4294967295) + = CAS Reg. No. 26232-84-8
By formula: (CAS Reg. No. 26232-84-8 • 4294967295C4H8O) + C4H8O = CAS Reg. No. 26232-84-8
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 41.8 ± 2.2 | kcal/mol | N/A | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
By formula: C4H8O + H2 = C4H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -19.57 ± 0.18 | kcal/mol | Cm | Wiberg, Crocker, et al., 1991 | liquid phase; ALS |
ΔrH° | -16.85 ± 0.30 | kcal/mol | Chyd | Buckley and Cox, 1967 | gas phase; ALS |
By formula: Mg+ + C4H8O = (Mg+ • C4H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66. ± 5. | kcal/mol | ICR | Operti, Tews, et al., 1988 | gas phase; switching reaction,Thermochemical ladder(Mg+)CH3OH; M |
By formula: C4H8O + 2CH4O = C6H14O2 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -14.1 ± 0.3 | kcal/mol | Cm | Wiberg, Morgan, et al., 1994 | gas phase; ALS |
By formula: 3C4H8O = C12H24O3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -7.039 | kcal/mol | Eqk | Ogorodnikov, Katsnel'son, et al., 1990 | liquid phase; PMR; ALS |
IR Spectrum
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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
Gas Phase Spectrum
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Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, 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 0-330K,
Zh. Obshch. Khim., 1989, 59(11), 2415-2420. [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.,
Not In System, 1956, 78, 56-59. [all data]
Vasil'ev and Lebedev, 1989, 2
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, 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,
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]
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]
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,
J. Am. Chem. Soc., 2001, 123, 50, 12675-12681, https://doi.org/10.1021/ja0120431
. [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]
Reents and Freiser, 1981
Reents, W.D.; Freiser, B.S.,
Gas-Phase Binding Energies and Spectroscopic Properties of NO+ Charge-Transfer Complexes,
J. Am. Chem. Soc., 1981, 103, 2791. [all data]
Farid and McMahon, 1978
Farid, R.; McMahon, T.B.,
Gas-Phase Ion-Molecule Reactions of Alkyl Nitrites by Ion Cyclotron Resonance Spectroscopy,
Int. J. Mass Spectrom. Ion Phys., 1978, 27, 2, 163, https://doi.org/10.1016/0020-7381(78)80037-0
. [all data]
Wiberg, Morgan, et al., 1994
Wiberg, K.B.; Morgan, K.M.; Maltz, H.,
Thermochemistry of carbonyl reactions. 6. A study of hydration equilibria,
J. Am. Chem. Soc., 1994, 116, 11067-11077. [all data]
Wiberg and Squires, 1981
Wiberg, K.B.; Squires, R.R.,
Thermochemical studies of carbonyl reactions. 2. Steric effects in acetal and ketal hydrolysis,
J. Am. Chem. Soc., 1981, 103, 4473-4478. [all data]
Dolliver, Gresham, et al., 1938
Dolliver, M.A.; Gresham, T.L.; Kistiakowsky, G.B.; Smith, E.A.; Vaughan, W.E.,
Heats of organic reactions. VI. Heats of hydrogenation of some oxygen-containing compounds,
J. Am. Chem. Soc., 1938, 60, 440-450. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr.,
The gas phase acidity scale from methanol to phenol,
J. Am. Chem. Soc., 1979, 101, 6047. [all data]
Operti, Tews, et al., 1988
Operti, L.; Tews, E.C.; Freiser, B.S.,
Determination of Gas-Phase Ligand Binding Energies to Mg+ by FTMS Techniques,
J. Am. Chem. Soc., 1988, 110, 12, 3847, https://doi.org/10.1021/ja00220a020
. [all data]
Ogorodnikov, Katsnel'son, et al., 1990
Ogorodnikov, A.L.; Katsnel'son, M.G.; Pinson, V.V.; Levin, Yu.V.,
Study of thermodynamic characteristics of a butyraldehyde-cyclic trimer system,
Zh. Prikl. Khim. (Leningrad), 1990, 63, 1340-1343. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure S°gas Entropy of gas at standard conditions S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
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