Benzonitrile
- Formula: C7H5N
- Molecular weight: 103.1213
- IUPAC Standard InChIKey: JFDZBHWFFUWGJE-UHFFFAOYSA-N
- CAS Registry Number: 100-47-0
- 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: Benzene, cyano-; Benzoic acid nitrile; Cyanobenzene; Phenyl cyanide; Benzenenitrile; Fenylkyanid; UN 2224
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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 compiled as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 219.0 | kJ/mol | N/A | Lebedev, Bykova, et al., 1985 | Value computed using ΔfHliquid° value of 163.2±1.5 kj/mol from Lebedev, Bykova, et al., 1985 and ΔvapH° value of 55.8 kj/mol from Evans and Skinner, 1959.; DRB |
ΔfH°gas | 219. | kJ/mol | Ccb | Evans and Skinner, 1959 | ALS |
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 | 163.2 ± 1.5 | kJ/mol | Ccb | Lebedev, Bykova, et al., 1985 | see Lebedev, Bykova, et al., 1984; ALS |
ΔfH°liquid | 163.2 ± 1.5 | kJ/mol | Ccb | Evans and Skinner, 1959 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -3632.3 ± 1.5 | kJ/mol | Ccb | Lebedev, Bykova, et al., 1985 | see Lebedev, Bykova, et al., 1984; ALS |
ΔcH°liquid | -3632.3 | kJ/mol | Ccb | Evans and Skinner, 1959 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 209.1 | J/mol*K | N/A | Lebedev, Bykova, et al., 1985, 2 | DH |
S°liquid | 209.1 | J/mol*K | N/A | Lebedev, Bykova, et al., 1984, 2 | DH |
S°liquid | 209.1 | J/mol*K | N/A | Bykova, Lebedev, et al., 1983 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
161.1 | 298.15 | Mirzaliev, Shakhuradov, et al., 1987 | T = 273 to 453 K. Unsmoothed experimental datum given as 1.496 kJ/kg*K at 293 K. Cp(liq) = 1.2396 + 8.7x10-5T/K + 3.3333x10-6T2/K2 kJ/kg*K (273 to 453 K).; DH |
166.24 | 298.15 | Lainez, Rodrigo, et al., 1985 | DH |
165.2 | 298.15 | Lebedev, Bykova, et al., 1985, 2 | T = 5 to 330 K.; DH |
166.52 | 298.15 | Tanaka, Nakamichi, et al., 1985 | DH |
165.2 | 298.15 | Lebedev, Bykova, et al., 1984, 2 | T = 25 to 330 K.; DH |
165.2 | 298.15 | Bykova, Lebedev, et al., 1983 | T = 5 to 330 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 464. ± 1. | K | AVG | N/A | Average of 14 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 263. ± 20. | K | AVG | N/A | Average of 8 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 260.33 | K | N/A | Lebedev, Bykova, et al., 1985, 2 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 260.33 | K | N/A | Lebedev, Bykova, et al., 1984, 3 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 260.33 | K | N/A | Bykova, Lebedev, et al., 1983, 2 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 701. ± 4. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 42.15 | bar | N/A | Steele, Chirico, et al., 1994 | Uncertainty assigned by TRC = 0.04 bar; TRC |
Pc | 42.20 | bar | N/A | Guye and Mallet, 1902 | Uncertainty assigned by TRC = 1.0132 bar; TRC |
Pc | 42.1512 | bar | N/A | Guye and Mallet, 1902, 2 | Uncertainty assigned by TRC = 1.5199 bar; TRC |
Pc | 42.1512 | bar | N/A | Guye and Mallet, 1902, 2 | Uncertainty assigned by TRC = 1.5199 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.037 | mol/l | N/A | Steele, Chirico, et al., 1994 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 55.48 | kJ/mol | V | Evans and Skinner, 1959 | ALS |
ΔvapH° | 55.8 | kJ/mol | N/A | Evans and Skinner, 1959 | DRB |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
342. | 0.013 | Buckingham and Donaghy, 1982 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
49.1 | 316. | A | Stephenson and Malanowski, 1987 | Based on data from 301. to 464. K. See also Stull, 1947.; 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 |
---|---|---|---|---|---|
301.4 to 463.8 | 4.85401 | 2110.572 | -28.331 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
10.980 | 260.33 | Lebedev, Bykova, et al., 1985, 2 | DH |
10.980 | 260.332 | Lebedev, Bykova, et al., 1984, 2 | DH |
10.980 | 260.33 | Bykova, Lebedev, et al., 1983 | DH |
10.98 | 260.3 | Lebedev, Bykova, et al., 1985 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
42.16 | 260.33 | Lebedev, Bykova, et al., 1985, 2 | DH |
42.16 | 260.332 | Lebedev, Bykova, et al., 1984, 2 | DH |
42.16 | 260.33 | Bykova, Lebedev, et al., 1983 | 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
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
By formula: Br- + C7H5N = (Br- • C7H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 61.5 ± 7.5 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 423 K, ΔSaff taken as that of PhNO2..Br-; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84. | J/mol*K | N/A | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 26. ± 4.2 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 423 K, ΔSaff taken as that of PhNO2..Br-; B |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
26. | 423. | PHPMS | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
By formula: Cl- + C7H5N = (Cl- • C7H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.9 | kJ/mol | PHPMS | Paul and Kebarle, 1991 | gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84. | J/mol*K | N/A | Paul and Kebarle, 1991 | gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
41.8 | 300. | PHPMS | Paul and Kebarle, 1991 | gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M |
C7H4N- + =
By formula: C7H4N- + H+ = C7H5N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1603. ± 10. | kJ/mol | TDEq | Meot-ner and Kafafi, 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1567. ± 8.4 | kJ/mol | TDEq | Meot-ner and Kafafi, 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho.; B |
By formula: C6H7N+ + C7H5N = (C6H7N+ • C7H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 81.2 | kJ/mol | PHPMS | Meot-Ner (Mautner) and El-Shall, 1986 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 88. | J/mol*K | N/A | Meot-Ner (Mautner) and El-Shall, 1986 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
51.5 | 338. | PHPMS | Meot-Ner (Mautner) and El-Shall, 1986 | gas phase; Entropy change calculated or estimated; M |
By formula: C11H10+ + C7H5N = (C11H10+ • C7H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 61.5 | kJ/mol | PHPMS | El-Shall and Meot-Ner (Mautner), 1987 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 110. | J/mol*K | N/A | El-Shall and Meot-Ner (Mautner), 1987 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
29. | 301. | PHPMS | El-Shall and Meot-Ner (Mautner), 1987 | gas phase; Entropy change calculated or estimated; M |
By formula: NO- + C7H5N = (NO- • C7H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 172. | kJ/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: CH6N+ + C7H5N = (CH6N+ • C7H5N)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 123. | kJ/mol | PHPMS | Speller and Meot-Ner (Mautner), 1985 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 131. | J/mol*K | PHPMS | Speller and Meot-Ner (Mautner), 1985 | gas phase; M |
Henry's Law data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction 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 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 |
---|---|---|---|---|
1.8 | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. Value at T = 373. K. |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedev, Bykova, et al., 1985
Lebedev, B.V.; Bykova, T.A.; Kiparisova, E.G.; Chernomordik, Yu.A.; Kurapov, A.S.; Sergeev, V.A.,
Thermodynamic study of benzonitrile, the process of its cocyclotrimerization with phenylacetylene, and the 2,4,6-triphenylpyridine that is formed, in the interval 0-330°K,
Bull. Acad. Sci. USSR, Div. Chem. Sci., 1985, 274-279. [all data]
Evans and Skinner, 1959
Evans, F.W.; Skinner, H.A.,
The heats of combustion of organic compounds of nitrogen Part 2.-n-Propyl, isopropyl and phenyl cyandies,
Trans. Faraday Soc., 1959, 55, 255-259. [all data]
Lebedev, Bykova, et al., 1984
Lebedev, B.V.; Bykova, T.A.; Kiparisova, E.G.; Pankratov, V.A.; Mitina, L.M.; Korshak, V.V.,
Thermodynamics of benzonitrile, of its cyclotrimerization process, and of the triphenyl-s-triazine formed in the range 0-300°K,
J. Gen. Chem. USSR, 1984, 54, 1209-1214. [all data]
Lebedev, Bykova, et al., 1985, 2
Lebedev, B.V.; Bykova, T.A.; Kiparisova, Y.G.; Chernomordik, Yu.A.; Kurapov, A.S.; Sergeev, V.A.,
Thermodynamic study of benzonitrile, the process of its cocyclotrimerization with phenylacetylene, and the resulting 2,4,6-triphenylpyridine at 0-300 K, Izv. Akad. Nauk SSSR,
Ser. Khim., 1985, (2), 301-306. [all data]
Lebedev, Bykova, et al., 1984, 2
Lebedev, B.V.; Bykova, T.A.; Kiparisova, Y.G.; Pankratov, V.A.; Mitina, L.M.; Korshak, V.V.,
Thermodynamics of benzonitrile, of its cyclotrimerization process, and of the triphenyl-s-triazine formed in the range 0-330°K,
Zhur. Obsch. Khim., 1984, 54, 1352-1358. [all data]
Bykova, Lebedev, et al., 1983
Bykova, T.A.; Lebedev, B.V.; Tarasov, E.N.,
Thermodynamics of benzonitrile in the range, 1983, Termodin. [all data]
Mirzaliev, Shakhuradov, et al., 1987
Mirzaliev, A.A.; Shakhuradov, Sh.G.; Guseinov, S.O.,
Investigation of the isobaric heat capacity of nitriles at different temperatures, Izv. Vyssh. Ucheb. Zaved.,
Neft i Gaz, 1987, 30(4), 55-58. [all data]
Lainez, Rodrigo, et al., 1985
Lainez, A.; Rodrigo, M.; Roux, A.H.; Grolier, J.-P.E.; Wilhelm, E.,
Relations between structure and thermodynamic properties. Heat capacities of polar substances (nitrobenzene and benzonitrile) in alkane solutions,
Calorim. Anal. Therm., 1985, 16, 153-158. [all data]
Tanaka, Nakamichi, et al., 1985
Tanaka, R.; Nakamichi, T.; Murakami, S.,
Molar excess heat capacities and volumes for mixtures of benzomitrile with cyclohexane between 10 and 45°C,
J. Solution Chem., 1985, 14(11), 795-803. [all data]
Lebedev, Bykova, et al., 1984, 3
Lebedev, B.V.; Bykova, T.A.; Kiparisova, E.G.; Pankratov, V.A.; Mitina, L.M.; Korshak, V.V.,
Thermodynamics of Benzonitrile, Its Cyclotrimerization and the Resulting Triphenyltriazine in the 0-330 K Range,
Zh. Obshch. Khim., 1984, 54, 1352. [all data]
Bykova, Lebedev, et al., 1983, 2
Bykova, T.A.; Lebedev, B.V.; Tarasov, E.N.,
Thermodynamics of benzonitrile in the range 0-330 K,
Termodin. Org. Soedin., 1983, 48-52. [all data]
Steele, Chirico, et al., 1994
Steele, W.V.; Chirico, R.D.; Hossenlopp, I.A.; Knipmeyer, S.E.; Nguyen, A.; Smith, N.K.,
DIPPR project 871. Determination of ideal-gas enthalpies of formation for key compounds. The 1990 project results,
Experimental Results for DIPPR 1990-91 Projects on Phase Equilibria and Pure Component Properties, 1994, 1994, DIPPR Data Ser. No. 2, p. 188-215. [all data]
Guye and Mallet, 1902
Guye, P.A.; Mallet, E.,
Critical Constant and Molecular Complexity of Several Organic Compds.,
C. R. Hebd. Seances Acad. Sci., 1902, 133, 168. [all data]
Guye and Mallet, 1902, 2
Guye, P.A.; Mallet, E.,
Measurement of Critical Constants,
Arch. Sci. Phys. Nat., 1902, 13, 274-296. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P.,
Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-,
J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014
. [all data]
Meot-ner and Kafafi, 1988
Meot-ner, M.; Kafafi, S.A.,
Carbon Acidities of Aromatic Compounds,
J. Am. Chem. Soc., 1988, 110, 19, 6297, https://doi.org/10.1021/ja00227a003
. [all data]
Kiefer, Zhang, et al., 1997
Kiefer, J.H.; Zhang, Q.; Kern, R.D.; Yao, J.; Jursic, B.,
Pyrolysis of Aromatic Azines: Pyrazine, Pyrimidine, and Pyridine,
J. Phys. Chem. A, 1997, 101, 38, 7061, https://doi.org/10.1021/jp970211z
. [all data]
Meot-Ner (Mautner) and El-Shall, 1986
Meot-Ner (Mautner), M.; El-Shall, M.S.,
Ionic Charge Transfer Complexes. 1. Cationic Complexes with Delocalized and Partially Localized pi Systems,
J. Am. Chem. Soc., 1986, 108, 15, 4386, https://doi.org/10.1021/ja00275a026
. [all data]
El-Shall and Meot-Ner (Mautner), 1987
El-Shall, M.S.; Meot-Ner (Mautner), M.,
Ionic Charge Transfer Complexes. 3. Delocalised pi Systems as Electron Acceptors and Donors,
J. Phys. Chem., 1987, 91, 5, 1088, https://doi.org/10.1021/j100289a017
. [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]
Speller and Meot-Ner (Mautner), 1985
Speller, C.V.; Meot-Ner (Mautner), M.,
The Ionic Hydrogen Bond and Ion Solvation. 3. Bonds Involving Cyanides. Correlations with Proton Affinites,
J. Phys. Chem., 1985, 81, 24, 5217, https://doi.org/10.1021/j100270a020
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure S°liquid Entropy of liquid at standard conditions T Temperature 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 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 ΔrS° Entropy 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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