Butane

Formula: C₄H₁₀
Molecular weight: 58.1222
IUPAC Standard InChI: InChI=1S/C4H10/c1-3-4-2/h3-4H2,1-2H3
IUPAC Standard InChIKey: IJDNQMDRQITEOD-UHFFFAOYSA-N
CAS Registry Number: 106-97-8
Chemical structure:
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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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Critical pressure

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Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

P_c (atm)	Reference	Comment
37.46 ± 0.1	Ambrose and Tsonopoulos, 1995
37.47	Teja, Lee, et al., 1989	TRC
37.43	Brunner, 1988	Uncertainty assigned by TRC = 0.05 atm; Visual, optical cell 30cm high. P transducer cal. vs PB.; TRC
37.50	Li and Kiran, 1988	Uncertainty assigned by TRC = 0.59 atm; TRC
37.46	Younglove and Ely, 1987	Uncertainty assigned by TRC = 0.02 atm; TRC
37.46	Haynes and Goodwin, 1982	TRC
37.3437	Kratzke, Spillner, et al., 1982	Uncertainty assigned by TRC = 0.0015 atm; calculated from vapor pressure at Tc = 425.14 K, selected; TRC
37.47	Das, Reed, et al., 1973	Uncertainty assigned by TRC = 0.09998 atm; TRC
37.4796	Kreglewski and Kay, 1969	Uncertainty assigned by TRC = 0.2381 atm; TRC
37.50	Kay, 1964	Uncertainty assigned by TRC = 0.5000 atm; TRC
37.35	Connolly, 1962	Uncertainty assigned by TRC = 0.2000 atm; TRC
37.4319	Kay, 1941	Uncertainty assigned by TRC = 0.0680 atm; TRC
37.43	Kay, 1940	Uncertainty assigned by TRC = 0.0680 atm; TRC
37.4700	Beattie, Simard, et al., 1939	Uncertainty assigned by TRC = 0.0400 atm; TRC
35.6749	Seibert and Burrell, 1915	Uncertainty assigned by TRC = 0.2631 atm; TRC; Data excluded from overall average
37.50	Kuenen, 1911	Uncertainty assigned by TRC = 1.0000 atm; TRC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

References

Go To: Top, Critical pressure, Notes

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]

Teja, Lee, et al., 1989
Teja, A.S.; Lee, R.J.; Rosenthal, D.J.; Anselme, M.J., Correlation of the Critical Properties of Alkanes and Alkanols in 5th IUPAC Conference on Alkanes and AlkanolsGradisca, 1989. [all data]

Brunner, 1988
Brunner, E., Fluid Mixtures at High Pressures VI. Phase Separation and Critical Phenomena in 18 (n-Alkane + Ammonia) and 4 (n-Alkane _ Methanol) Mixtures, J. Chem. Thermodyn., 1988, 20, 273. [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]

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]

Kratzke, Spillner, et al., 1982
Kratzke, H.; Spillner, E.; Muller, S., Thermodynamic properties for n-butane--1. The vapour pressure of liquid n-butane, J. Chem. Thermodyn., 1982, 14, 1175-81. [all data]

Das, Reed, et al., 1973
Das, T.R.; Reed, C.O.; Eubank, P.T., Pvt surface and thermodynamic properties of n-butane, J. Chem. Eng. Data, 1973, 18, 244. [all data]

Kreglewski and Kay, 1969
Kreglewski, A.; Kay, W.B., The Critical Constants of Conformal Mixtures, J. Phys. Chem., 1969, 73, 3359. [all data]

Kay, 1964
Kay, W.B., P-T-x Diagrams in the Critical Region. Acetone-n-Alkane Systems, J. Phys. Chem., 1964, 68, 827-31. [all data]

Connolly, 1962
Connolly, J.F., Ideality of n-Butane:Isobutane Solutions, J. Phys. Chem., 1962, 66, 1082. [all data]

Kay, 1941
Kay, W.B., Liquid-Vapor Equil. Relations in Binary Systems. Butane-Heptane Syst. System, Ind. Eng. Chem., 1941, 33, 590-4. [all data]

Kay, 1940
Kay, W.B., Liquid-Vapor Equilibrium Relations in Binary Systems. The Ethane- Butane System, Ind. Eng. Chem., 1940, 32, 353-7. [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]

Seibert and Burrell, 1915
Seibert, F.M.; Burrell, G.A., The Critical Constants of Normal Butane, Iso-butane and Propylene and Their Vapor Pressures at Temperatures Bewtween 0 deg.C and 120 deg.C, J. Am. Chem. Soc., 1915, 37, 2683-91. [all data]

Kuenen, 1911
Kuenen, J.P., Commun. Kamerlingh Onnes Lab. Univ. Leiden, 1911, No. 125, 1. [all data]

Notes

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Symbols used in this document:

P_c Critical pressure
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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