Nonane

Formula: C₉H₂₀
Molecular weight: 128.2551
IUPAC Standard InChI: InChI=1S/C9H20/c1-3-5-7-9-8-6-4-2/h3-9H2,1-2H3
IUPAC Standard InChIKey: BKIMMITUMNQMOS-UHFFFAOYSA-N
CAS Registry Number: 111-84-2
Chemical structure:
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Other names: n-Nonane; Shellsol 140; n-C9H20; UN 1920
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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
22.6 ± 0.5	Ambrose and Tsonopoulos, 1995
22.50	Rosenthal and Teja, 1989	Uncertainty assigned by TRC = 0.20 atm; TRC
22.69	Brunner, 1988	Uncertainty assigned by TRC = 0.05 atm; Visual, optical cell 30cm high. P transducer cal. vs PB.; TRC
22.40	Matzik and Schneider, 1985	Uncertainty assigned by TRC = 0.30 atm; TRC
22.611	Kay and Pak, 1980	Uncertainty assigned by TRC = 0.0022 atm; Visual, Table 1, confined over gallium; TRC
22.604	Kay and Pak, 1980	Uncertainty assigned by TRC = 0.0022 atm; Visual, Table 1, mercury interface at room temperature; TRC
22.755	Kay and Pak, 1980	Uncertainty assigned by TRC = 0.0023 atm; Visual, Table 2, mercury interface at room temperature; TRC
23.265	Kay and Pak, 1980	Uncertainty assigned by TRC = 0.0023 atm; Visual, Table 2, mercury interface at sample temperature; TRC
22.64	Pak and Kay, 1972	Uncertainty assigned by TRC = 0.0680 atm; corected for presence Hg vapor; TRC
22.58	Ambrose and Townsend, 1968	Uncertainty assigned by TRC = 0.099 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]

Rosenthal and Teja, 1989
Rosenthal, D.J.; Teja, A.S., The Critical Properties of n-Alkanes Using a Low-Residence Time Flow Apparatus, AIChE J., 1989, 35, 1829. [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]

Matzik and Schneider, 1985
Matzik, I.; Schneider, G.M., Fluid phase equilibria of binary mixtures of sulfur hexafluoride with octane, nonane, hendecane, and cis-decahydronaphthalene at temperature between 280 K and 440 K and at pressures up to 140 MPa, Ber. Bunsen-Ges. Phys. Chem., 1985, 89, 551. [all data]

Kay and Pak, 1980
Kay, W.B.; Pak, S.C., Determination of the critical constants of high-boiling hydrocarbons. Experiments with gallium as a containing fluid, J. Chem. Thermodyn., 1980, 12, 673. [all data]

Pak and Kay, 1972
Pak, S.C.; Kay, W.B., Gas-Liquid Critical Temperatures of Mixtures. Benzene + n-Alkanes and Hexafluorobenzene + n-Alkanes, Ind. Eng. Chem. Fundam., 1972, 11, 255. [all data]

Ambrose and Townsend, 1968
Ambrose, D.; Townsend, R., Critical Temperatures and Pressures of Some Alkanes, Trans. Faraday Soc., 1968, 64, 2622. [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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