Butane
- Formula: C4H10
- Molecular weight: 58.1222
- IUPAC Standard InChIKey: IJDNQMDRQITEOD-UHFFFAOYSA-N
- CAS Registry Number: 106-97-8
- 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: n-Butane; Diethyl; Freon 600; Liquefied petroleum gas; LPG; n-C4H10; Butanen; Butani; Methylethylmethane; UN 1011; A 21; HC 600; HC 600 (hydrocarbon); R 600; R 600 (alkane)
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Reaction thermochemistry data
Go To: Top, Henry's Law data, Gas phase ion energetics data, 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 as indicated in comments:
B - John E. Bartmess
MS - José A. Martinho Simões
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
C4H9- + =
By formula: C4H9- + H+ = C4H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1739. ± 8.4 | kJ/mol | Bran | DePuy, Gronert, et al., 1989 | gas phase; The HOF(Et(Me)N.) in Seetula, Russell, et al., 1990 gives BDE(N-H) = 99 kcal/mol, ca. 5 kcal/mol too strong; B |
ΔrH° | 1745. ± 20. | kJ/mol | Bran | Peerboom, Rademaker, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1703. ± 8.8 | kJ/mol | H-TS | DePuy, Gronert, et al., 1989 | gas phase; The HOF(Et(Me)N.) in Seetula, Russell, et al., 1990 gives BDE(N-H) = 99 kcal/mol, ca. 5 kcal/mol too strong; B |
ΔrG° | 1709. ± 21. | kJ/mol | H-TS | Peerboom, Rademaker, et al., 1992 | gas phase; B |
C4H9Li (l) + (g) = (l) + (cr)
By formula: C4H9Li (l) + HBr (g) = C4H10 (l) + BrLi (cr)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -374.0 ± 2.0 | kJ/mol | RSC | Holm, 1974 | Please also see Pedley and Rylance, 1977. The reaction enthalpy was quoted from Pedley and Rylance, 1977. See Liebman, Martinho Simões, et al., 1995 for comments; MS |
(g) + C4H9Li (l) = (l) + (cr)
By formula: HBr (g) + C4H9Li (l) = C4H10 (l) + BrLi (cr)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -352.7 ± 2.0 | kJ/mol | RSC | Holm, 1974 | Please also see Pedley and Rylance, 1977. The reaction enthalpy was quoted from Pedley and Rylance, 1977. See Liebman, Martinho Simões, et al., 1995 for comments; MS |
By formula: 2H2 + C4H6 = C4H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -272.4 ± 1.3 | kJ/mol | Chyd | Conn, Kistiakowsky, et al., 1939 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -274.4 ± 0.54 kJ/mol; At 355 K; ALS |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -114.6 ± 0.42 | kJ/mol | Chyd | Kistiakowsky, Ruhoff, et al., 1935 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -115.57 ± 0.088 kJ/mol; At 355 °K; ALS |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -118.5 ± 0.42 | kJ/mol | Chyd | Kistiakowsky, Ruhoff, et al., 1935 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -119.54 ± 0.079 kJ/mol; At 355 °K; ALS |
By formula: C4H6 + 2H2 = C4H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -236.7 ± 0.42 | kJ/mol | Chyd | Kistiakowsky, Ruhoff, et al., 1936 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -238.8 ± 0.4 kJ/mol; At 355 °K; ALS |
C4H9Li (l) + (g) = (g) + HLiO (cr)
By formula: C4H9Li (l) + H2O (g) = C4H10 (g) + HLiO (cr)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -240.2 ± 2.9 | kJ/mol | RSC | Fowell and Mortimer, 1961 | Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970, 2.; MS |
C4H9ClMg (cr) + ( • 556) (solution) = (g) + (Cl2Mg • 900) (solution)
By formula: C4H9ClMg (cr) + (HCl • 556H2O) (solution) = C4H10 (g) + (Cl2Mg • 900H2O) (solution)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -305.8 ± 1.8 | kJ/mol | RSC | Genchel, Evstigneeva, et al., 1976 | MS |
C4H9BrMg (solution) + (g) = (solution) + Br2Mg (solution)
By formula: C4H9BrMg (solution) + HBr (g) = C4H10 (solution) + Br2Mg (solution)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -292.5 ± 2.2 | kJ/mol | RSC | Holm, 1981 | solvent: Diethyl ether; MS |
C4H9BrMg (solution) + (g) = (solution) + Br2Mg (solution)
By formula: C4H9BrMg (solution) + HBr (g) = C4H10 (solution) + Br2Mg (solution)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -305.9 ± 2.2 | kJ/mol | RSC | Holm, 1981 | solvent: Diethyl ether; MS |
C5O5W (g) + (g) = C9H10O5W (g)
By formula: C5O5W (g) + C4H10 (g) = C9H10O5W (g)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -38. ± 13. | kJ/mol | EqG | Brown, Ishikawa, et al., 1990 | Temperature range: ca. 300-350 K; MS |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -125.9 ± 0.42 | kJ/mol | Chyd | Kistiakowsky, Ruhoff, et al., 1935 | gas phase; At 355 °K; ALS |
By formula: C4H10 = C4H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -9.699 | kJ/mol | Eqk | Pines, Kvetinskas, et al., 1945 | gas phase; Heat of isomerization; ALS |
By formula: 3H2 + C4H4 = C4H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -422. ± 2. | kJ/mol | Chyd | Roth, Adamczak, et al., 1991 | liquid phase; ALS |
Henry's Law data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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: 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 |
---|---|---|---|---|
0.0011 | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. | |
0.0011 | L | N/A | ||
0.0012 | 3100. | L | N/A | |
0.0011 | V | N/A | ||
0.0049 | V | N/A |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Henry's Law data, 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 evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.53 ± 0.02 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.57 | EST | Luo and Pacey, 1992 | LL |
10.53 ± 0.10 | EVAL | Lias, 1982 | LBLHLM |
10.35 ± 0.15 | EQ | Mautner(Meot-Ner), Sieck, et al., 1981 | LLK |
10.6 ± 0.1 | PE | Bieri, Burger, et al., 1977 | LLK |
10.61 | EQ | Lias, Ausloos, et al., 1976 | LLK |
10.87 ± 0.05 | EI | Flesch and Svec, 1973 | LLK |
10.89 | EI | Matsumoto, Taniguchi, et al., 1970 | RDSH |
10.67 | PI | Dewar and Worley, 1969 | RDSH |
10.55 ± 0.05 | PI | Chupka and Berkowitz, 1967 | RDSH |
10.50 | PI | Al-Joboury and Turner, 1964 | RDSH |
10.55 ± 0.05 | PI | Steiner, Giese, et al., 1961 | RDSH |
10.63 ± 0.03 | PI | Watanabe, 1957 | RDSH |
11.09 | PE | Kimura, Katsumata, et al., 1981 | Vertical value; LLK |
11.2 | PE | Bieri and Asbrink, 1980 | Vertical value; LLK |
11.2 ± 0.1 | PE | Bieri, Burger, et al., 1977 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CH3+ | 29.7 ± 0.2 | ? | EI | Olmsted, Street, et al., 1964 | RDSH |
C2H4+ | ~11.65 | C2H6 | PI | Chupka and Berkowitz, 1967 | RDSH |
C2H5+ | 12.55 | C2H5 | EI | Omura, 1961 | RDSH |
C3H5+ | 13.40 | ? | EI | Omura, 1961 | RDSH |
C3H6+ | 11.15 | CH4 | EI | Wolkoff and Holmes, 1978 | LLK |
C3H6+ | 11.06 | CH4 | EI | Matsumoto, Taniguchi, et al., 1970 | RDSH |
C3H6+ | 11.18 | CH4 | PI | Chupka and Berkowitz, 1967 | RDSH |
C3H6+ | 11.16 ± 0.03 | CH4 | PI | Steiner, Giese, et al., 1961 | RDSH |
C3H7+ | 11.2 | CH3 | EI | Wolkoff and Holmes, 1978 | LLK |
C3H7+ | 11.09 | CH3 | EI | Matsumoto, Taniguchi, et al., 1970 | RDSH |
C3H7+ | 11.10 ± 0.05 | CH3 | EI | Williams and Hamill, 1968 | RDSH |
C3H7+ | 11.18 | CH3 | PI | Chupka and Berkowitz, 1967 | RDSH |
C3H7+ | 11.19 ± 0.02 | CH3 | PI | Steiner, Giese, et al., 1961 | RDSH |
C4H9+ | 10.9 ± 0.1 | H- | PI | Chupka and Berkowitz, 1967 | RDSH |
C4H9+ | 11.7 ± 0.1 | H | PI | Chupka and Berkowitz, 1967 | RDSH |
H3+ | 31. ± 1. | ? | EI | Fuchs, 1972 | LLK |
De-protonation reactions
C4H9- + =
By formula: C4H9- + H+ = C4H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1739. ± 8.4 | kJ/mol | Bran | DePuy, Gronert, et al., 1989 | gas phase; The HOF(Et(Me)N.) in Seetula, Russell, et al., 1990 gives BDE(N-H) = 99 kcal/mol, ca. 5 kcal/mol too strong; B |
ΔrH° | 1745. ± 20. | kJ/mol | Bran | Peerboom, Rademaker, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1703. ± 8.8 | kJ/mol | H-TS | DePuy, Gronert, et al., 1989 | gas phase; The HOF(Et(Me)N.) in Seetula, Russell, et al., 1990 gives BDE(N-H) = 99 kcal/mol, ca. 5 kcal/mol too strong; B |
ΔrG° | 1709. ± 21. | kJ/mol | H-TS | Peerboom, Rademaker, et al., 1992 | gas phase; B |
Mass spectrum (electron ionization)
Go To: Top, Reaction thermochemistry 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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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. |
---|---|
NIST MS number | 18940 |
References
Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, 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.
DePuy, Gronert, et al., 1989
DePuy, C.H.; Gronert, S.; Barlow, S.E.; Bierbaum, V.M.; Damrauer, R.,
The Gas Phase Acidities of the Alkanes,
J. Am. Chem. Soc., 1989, 111, 6, 1968, https://doi.org/10.1021/ja00188a003
. [all data]
Seetula, Russell, et al., 1990
Seetula, J.A.; Russell, J.J.; Gutman, D.,
Kinetics and Thermochemistry of the Reactions of Alkyl Radicals with HI: A Reconciliation of the Alkyl Radical Heats of Formation,
J. Am. Chem. Soc., 1990, 112, 4, 1347, https://doi.org/10.1021/ja00160a009
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Peerboom, Rademaker, et al., 1992
Peerboom, R.A.L.; Rademaker, G.J.; Dekoning, L.J.; Nibbering, N.M.M.,
Stabilization of Cycloalkyl Carbanions in the Gas Phase,
Rapid Commun. Mass Spectrom., 1992, 6, 6, 394, https://doi.org/10.1002/rcm.1290060608
. [all data]
Holm, 1974
Holm, T.,
J. Organometal. Chem., 1974, 77, 27. [all data]
Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J.,
Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]
Liebman, Martinho Simões, et al., 1995
Liebman, J.F.; Martinho Simões, J.A.; Slayden, S.W.,
In Lithium Chemistry: A Theoretical and Experimental Overview Wiley: New York, Sapse, A.-M.; Schleyer, P. von Ragué, ed(s)., 1995. [all data]
Conn, Kistiakowsky, et al., 1939
Conn, J.B.; Kistiakowsky, G.B.; Smith, E.A.,
Heats of organic reactions. VIII. Some further hydrogenations, including those of some acetylenes,
J. Am. Chem. Soc., 1939, 61, 1868-1876. [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]
Kistiakowsky, Ruhoff, et al., 1935
Kistiakowsky, G.B.; Ruhoff, J.R.; Smith, H.A.; Vaughan, W.E.,
Heats of organic reactions. II. Hydrogenation of some simpler olefinic hydrocarbons,
J. Am. Chem. Soc., 1935, 57, 876-882. [all data]
Kistiakowsky, Ruhoff, et al., 1936
Kistiakowsky, G.B.; Ruhoff, J.R.; Smith, H.A.; Vaughan, W.E.,
Heats of organic reactions. IV. Hydrogenation of some dienes and of benzene,
J. Am. Chem. Soc., 1936, 58, 146-153. [all data]
Fowell and Mortimer, 1961
Fowell, P.A.; Mortimer, C.T.,
J. Chem. Soc., 1961, 3793.. [all data]
Cox and Pilcher, 1970, 2
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds
in Academic Press, New York, 1970. [all data]
Genchel, Evstigneeva, et al., 1976
Genchel, V.G.; Evstigneeva, E.V.; Petrova, N.V.,
Zh. Fiz. Khim., 1976, 50, 1909. [all data]
Holm, 1981
Holm, T.,
J. Chem. Soc., Perkin Trans. II, 1981, 464.. [all data]
Brown, Ishikawa, et al., 1990
Brown, C.E.; Ishikawa, Y.; Hackett, P.A.; Rayner, D.M.,
J. Am. Chem. Soc., 1990, 112, 2530. [all data]
Pines, Kvetinskas, et al., 1945
Pines, H.; Kvetinskas, B.; Kassel, L.S.; Ipatieff, V.N.,
Determination of equilibrium constants for butanes and pentanes,
J. Am. Chem. Soc., 1945, 67, 631-637. [all data]
Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R.,
Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld,
Chem. Ber., 1991, 124, 2499-2521. [all data]
Luo and Pacey, 1992
Luo, Y.-R.; Pacey, P.D.,
Effects of alkyl substitution on ionization energies of alkanes and haloalkanes and on heats of formation of their molecular cations. Part 2. Alkanes and chloro-, bromo- and iodoalkanes,
Int. J. Mass Spectrom. Ion Processes, 1992, 112, 63. [all data]
Lias, 1982
Lias, S.G.,
Thermochemical information from ion-molecule rate constants,
Ion Cyclotron Reson. Spectrom. 1982, 1982, 409. [all data]
Mautner(Meot-Ner), Sieck, et al., 1981
Mautner(Meot-Ner), M.; Sieck, L.W.; Ausloos, P.,
Ionization of normal alkanes: Enthalpy, entropy, structural, and isotope effects,
J. Am. Chem. Soc., 1981, 103, 5342. [all data]
Bieri, Burger, et al., 1977
Bieri, G.; Burger, F.; Heilbronner, E.; Maier, J.P.,
Valence ionization enrgies of hydrocarbons,
Helv. Chim. Acta, 1977, 60, 2213. [all data]
Lias, Ausloos, et al., 1976
Lias, S.G.; Ausloos, P.; Horvath, Z.,
Charge transfer reactions in alkane and cycloalkane systems. Estimated ionization potentials,
Int. J. Chem. Kinet., 1976, 8, 725. [all data]
Flesch and Svec, 1973
Flesch, G.D.; Svec, H.J.,
Fragmentation reactions in the mass spectrometer for C2-C5 alkanes,
J. Chem. Soc. Faraday Trans. 2, 1973, 69, 1187. [all data]
Matsumoto, Taniguchi, et al., 1970
Matsumoto, A.; Taniguchi, S.; Hayakawa, T.,
Studies of dissociation of hydrogen and n-butane metastable ions by a pulsed ion source
in Recent Developments in Mass Spectrometry, ed. K. Ogata and T. Hayakawa, Univ. Park Press, Baltimore, MD, 1970, 820. [all data]
Dewar and Worley, 1969
Dewar, M.J.S.; Worley, S.D.,
Photoelectron spectra of molecules. I. Ionization potentials of some organic molecules and their interpretation,
J. Chem. Phys., 1969, 50, 654. [all data]
Chupka and Berkowitz, 1967
Chupka, W.A.; Berkowitz, J.,
Photoionization of ethane, propane, and n-butane with mass analysis,
J. Chem. Phys., 1967, 47, 2921. [all data]
Al-Joboury and Turner, 1964
Al-Joboury, M.I.; Turner, D.W.,
Molecular photoelectron spectroscopy. Part II. A summary of ionization potentials,
J. Chem. Soc., 1964, 4434. [all data]
Steiner, Giese, et al., 1961
Steiner, B.; Giese, C.F.; Inghram, M.G.,
Photoionization of alkanes. Dissociation of excited molecular ions,
J. Chem. Phys., 1961, 34, 189. [all data]
Watanabe, 1957
Watanabe, K.,
Ionization potentials of some molecules,
J. Chem. Phys., 1957, 26, 542. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Bieri and Asbrink, 1980
Bieri, G.; Asbrink, L.,
30.4-nm He(II) photoelectron spectra of organic molecules,
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Olmsted, Street, et al., 1964
Olmsted, J., III; Street, K., Jr.; Newton, A.S.,
Excess-kinetic-energy ions in organic mass spectra,
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Omura, 1961
Omura, I.,
Mass spectra at low ionizing voltage and bond dissociation energies of molecular ions from hydrocarbons,
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Wolkoff and Holmes, 1978
Wolkoff, P.; Holmes, J.L.,
Fragmentations of alkane molecular ions,
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Williams and Hamill, 1968
Williams, J.M.; Hamill, W.H.,
Ionization potentials of molecules and free radicals and appearance potentials by electron impact in the mass spectrometer,
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Fuchs, 1972
Fuchs, R.,
Die kinetische energie ionisierter molekulfragmente VII. H3 ALS fragmention bei der elektronenstrossionisierung von kohlenwasserstoffen,
Int. J. Mass Spectrom. Ion Processes, 1972, 8, 193. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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