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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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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 55.21 | cal/mol*K | N/A | Aston and Messerly, 1940 | Using extrapolated values of Cp 273 to 298 K for the superheated liquid. |
S°liquid | 54.21 | cal/mol*K | N/A | Parks, Shomate, et al., 1937 | Calculated from heat capacity data reported by 31HUF/PAR. Extrapolation below 67 K, 41.34 J/mol*K. |
S°liquid | 54.90 | cal/mol*K | N/A | Huffman, Parks, et al., 1931 | Extrapolation below 90 K, 48.95 J/mol*K. Extrapolated above 262 K. |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
31.649 | 270. | Aston and Messerly, 1940 | T = 11 to 270 K. |
31.00 | 261.8 | Huffman, Parks, et al., 1931 | T = 69 to 262 K. Value is unsmoothed experimental datum. |
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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 273. ± 1. | K | AVG | N/A | Average of 33 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 136. ± 3. | K | AVG | N/A | Average of 8 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 134.6 ± 0.7 | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ptriple | 0.000007 | atm | N/A | Younglove and Ely, 1987 | Uncertainty assigned by TRC = 8.×10-9 atm; TRC |
Ptriple | 0.000007 | atm | N/A | Haynes and Goodwin, 1982 | TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 425. ± 1. | K | AVG | N/A | Average of 18 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 37.45 ± 0.09 | atm | AVG | N/A | Average of 15 out of 16 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.255 | l/mol | N/A | Ambrose and Tsonopoulos, 1995 | |
Vc | 0.263 | l/mol | N/A | Li and Kiran, 1988 | Uncertainty assigned by TRC = 0.01 l/mol; TRC |
Vc | 0.2551 | l/mol | N/A | Younglove and Ely, 1987 | Uncertainty assigned by TRC = 0.001 l/mol; TRC |
Vc | 0.258 | l/mol | N/A | Beattie, Simard, et al., 1939 | Uncertainty assigned by TRC = 0.003 l/mol; from graphical plot of isotherms; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.92 ± 0.03 | mol/l | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 5.35 | kcal/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
5.3511 | 272.05 | N/A | Aston and Messerly, 1940 | P = 101.325 kPa; DH |
5.363 | 272.7 | N/A | Majer and Svoboda, 1985 | |
5.47 | 308. | N/A | Sako, Horiguchi, et al., 1997 | Based on data from 300. to 315. K.; AC |
5.59 | 277. | A | Stephenson and Malanowski, 1987 | Based on data from 195. to 292. K.; AC |
5.54 | 288. | A | Stephenson and Malanowski, 1987 | Based on data from 273. to 321. K.; AC |
5.40 | 331. | A | Stephenson and Malanowski, 1987 | Based on data from 316. to 383. K.; AC |
5.45 | 390. | A | Stephenson and Malanowski, 1987 | Based on data from 375. to 425. K.; AC |
6.5 | 198. | A | Stephenson and Malanowski, 1987 | Based on data from 135. to 213. K. See also Carruth and Kobayashi, 1973.; AC |
5.52 | 264. | N/A | Wackher, Linn, et al., 1945 | Based on data from 206. to 279. K. See also Boublik, Fried, et al., 1984.; AC |
5.02 ± 0.02 | 272.66 | V | Aston and Messerly, 1940, 2 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 5.35 ± 0.15 kcal/mol; hfusion=1.11 kcal/mol; ALS |
5.71 | 258. | N/A | Aston and Messerly, 1940 | Based on data from 195. to 273. K. See also Boublik, Fried, et al., 1984.; AC |
Entropy of vaporization
ΔvapS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
19.67 | 272.05 | Aston and Messerly, 1940 | P; DH |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
135.42 to 212.89 | 4.70241 | 1200.475 | -13.013 | Carruth and Kobayashi, 1973 | Coefficents calculated by NIST from author's data. |
272.66 to 425. | 4.35005 | 1175.581 | -2.071 | Das, Reed, et al., 1973 | Coefficents calculated by NIST from author's data. |
195.11 to 272.81 | 3.84431 | 909.65 | -36.146 | Aston and Messerly, 1940 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.58 | 107. | B | Geiseler, Quitzsch, et al., 1966 | AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.11 | 134.9 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.555 | 107.6 | Domalski and Hearing, 1996 | CAL |
8.260 | 134.9 |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.4940 | 107.55 | crystaline, II | crystaline, I | Aston and Messerly, 1940 | DH |
1.114 | 134.86 | crystaline, I | liquid | Aston and Messerly, 1940 | DH |
0.5060 | 107.0 | crystaline, II | crystaline, I | Huffman, Parks, et al., 1931 | DH |
1.045 | 134.1 | crystaline, I | liquid | Huffman, Parks, et al., 1931 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
4.594 | 107.55 | crystaline, II | crystaline, I | Aston and Messerly, 1940 | DH |
8.260 | 134.86 | crystaline, I | liquid | Aston and Messerly, 1940 | DH |
4.73 | 107.0 | crystaline, II | crystaline, I | Huffman, Parks, et al., 1931 | DH |
7.79 | 134.1 | crystaline, I | liquid | Huffman, Parks, et al., 1931 | DH |
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.
Aston and Messerly, 1940
Aston, J.G.; Messerly, G.H.,
The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of n-butane,
J. Am. Chem. Soc., 1940, 62, 1917-1923. [all data]
Parks, Shomate, et al., 1937
Parks, G.S.; Shomate, C.H.; Kennedy, W.D.; Crawford, B.L., Jr.,
The entropies of n-butane and isobutane, with some heat capacity data for isobutane,
J. Chem. Phys., 1937, 5, 359-363. [all data]
Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M.,
Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons,
J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]
Younglove and Ely, 1987
Younglove, B.A.; Ely, J.F.,
Thermophysical Properties of Fluids II. Methane, Ethane, Propane, Isobutane, and Normal Butane,
J. Phys. Chem. Ref. Data, 1987, 16, 577. [all data]
Haynes and Goodwin, 1982
Haynes, W.M.; Goodwin, R.D.,
Thermopnhysical properties of normal butane from 135 to 700K at pressures to 70 MPa,
NBS Monogr. (U. S.), 1982, 1982, 197 pp.. [all data]
Ambrose and Tsonopoulos, 1995
Ambrose, D.; Tsonopoulos, C.,
Vapor-Liquid Critical Properties of Elements and Compounds. 2. Normal Alkenes,
J. Chem. Eng. Data, 1995, 40, 531-546. [all data]
Li and Kiran, 1988
Li, L.; Kiran, E.,
Gas-Liquid Critical Properties of Methylamine + Nitrous Oxide and Methylamine + Ethylene Binary Mixtures,
J. Chem. Eng. Data, 1988, 33, 342. [all data]
Beattie, Simard, et al., 1939
Beattie, J.A.; Simard, G.L.; Su, G.-J.,
The Vapor Pressure of Critical Constants of Normal Butane,
J. Am. Chem. Soc., 1939, 61, 24. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [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]
Sako, Horiguchi, et al., 1997
Sako, Takeshi; Horiguchi, Sadashige; Ichimaru, Hiroshi; Nakagawa, Shinsuke,
Vapor Pressure of Chlorine Trifluoride from 300 K to 317 K,
J. Chem. Eng. Data, 1997, 42, 1, 169-171, https://doi.org/10.1021/je960286g
. [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]
Carruth and Kobayashi, 1973
Carruth, Grant F.; Kobayashi, Riki,
Vapor pressure of normal paraffins ethane through n-decane from their triple points to about 10 mm mercury,
J. Chem. Eng. Data, 1973, 18, 2, 115-126, https://doi.org/10.1021/je60057a009
. [all data]
Wackher, Linn, et al., 1945
Wackher, Richard C.; Linn, Carl B.; Grosse, Aristid V.,
Physical Properties of Butanes and Butenes.,
Ind. Eng. Chem., 1945, 37, 5, 464-468, https://doi.org/10.1021/ie50425a023
. [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]
Aston and Messerly, 1940, 2
Aston, J.G.; Messerly, G.H.,
The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of n-butane,
J. Am. Chem. Soc., 1940, 62, 1917-19. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Das, Reed, et al., 1973
Das, T.R.; Reed, C.O., Jr.; Eubank, P.T.,
PVT Surface and Thermodynamic Properties of n-Butane,
J. Chem. Eng. Data, 1973, 18, 3, 244-253, https://doi.org/10.1021/je60058a002
. [all data]
Geiseler, Quitzsch, et al., 1966
Geiseler, V.G.; Quitzsch, K.; Rauh, H.J.; Schaffernicht, H.; Walther, H.J.,
Bildungsenthalpien und Mesomerieenergien von π-Bindungssystemen 1. Mitteilung: Bildungsenthalpien und Mesomerieenergien einiger mehrkerniger Aromaten und verschiedener Pseudoazulene,
Ber. Bunsen-Ges. Phys. Chem., 1966, 70, 551-556. [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]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure Ptriple Triple point pressure S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature Vc Critical volume ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ΔvapS Entropy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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