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Acetonitrile

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
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
Tboil354.8 ± 0.4KAVGN/AAverage of 47 out of 52 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus228. ± 1.KAVGN/AAverage of 15 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple229.32KN/APutnam, McEachern, et al., 1965Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc545. ± 2.KAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Pc48.7 ± 0.9barAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Deltavap33.4kJ/molN/AMajer and Svoboda, 1985 
Deltavap33.kJ/molEBAntosik, Galka, et al., 2004Based on data from 302. - 353. K.; AC
Deltavap33.45 ± 0.21kJ/molEAn and Mansson, 1983ALS
Deltavap33.kJ/molN/AAn and Mansson, 1983AC
Deltavap32.94 ± 0.06kJ/molVHoward and Wadso, 1970ALS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
33.225298.15N/APutnam, McEachern, et al., 1965, 2P = 11.83 kPA; DH
29.75354.7N/AMajer and Svoboda, 1985 
33.3329.A,EBStephenson and Malanowski, 1987Based on data from 314. - 355. K. See also Meyer, Renner, et al., 1971.; AC
33.8303.N/ADojcansky and Heinrich, 1974Based on data from 288. - 362. K.; AC
34.8315.BGBaldt and Hall, 1971Based on data from 299. - 343. K.; AC
34.58.24VHall and Baldt, 1971ALS
34.2288.N/AKushchenko and Mishchenko, 1968Based on data from 273. - 323. K.; AC
33.9290.N/APutnam, McEachern, et al., 1965, 3Based on data from 280. - 300. K.; AC

Entropy of vaporization

DeltavapS (J/mol*K) Temperature (K) Reference Comment
111.44298.15Putnam, McEachern, et al., 1965, 2P; DH

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
288.3 - 362.34.278731355.374-37.853Dojcansky and Heinrich, 1974, 2Coefficents calculated by NIST from author's data.
280.41 - 300.535.932962345.82943.815Putnam, McEachern, et al., 1965, 2Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
8.17229.3Domalski and Hearing, 1996AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.8979216.9crystaline, IIcrystaline, IPutnam, McEachern, et al., 1965, 2DH
8.167229.32crystaline, IliquidPutnam, McEachern, et al., 1965, 2DH
0.800218.0crystaline, IIcrystaline, IMartin, 1982DH
6.670228.7crystaline, IliquidMartin, 1982DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
4.14216.9crystaline, IIcrystaline, IPutnam, McEachern, et al., 1965, 2DH
35.61229.32crystaline, IliquidPutnam, McEachern, et al., 1965, 2DH
3.67218.0crystaline, IIcrystaline, IMartin, 1982DH
29.2228.7crystaline, IliquidMartin, 1982DH

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, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Putnam, McEachern, et al., 1965
Putnam, W.E.; McEachern, D.M.; Kilpatrick, J.E., Entropy and related thermodynamic properties of acetonitrile (methyl cyanide), J. Chem. Phys., 1965, 42, 749-55. [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]

Antosik, Galka, et al., 2004
Antosik, Maria; Galka, Maria; Malanowski, Stanislaw K., Vapor-Liquid Equilibrium for Acetonitrile + Propanenitrile and 1-Pentanamine + 1-Methoxy-2-propanol «8224», J. Chem. Eng. Data, 2004, 49, 1, 11-17, https://doi.org/10.1021/je025660t . [all data]

An and Mansson, 1983
An, X.; Mansson, M., Enthalpies of combustion and formation of acetontrile, J. Chem. Thermodyn., 1983, 15, 287-293. [all data]

Howard and Wadso, 1970
Howard, P.B.; Wadso, I., Enthalpies of vaporization of organic compounds IV. Alkyl Nitriles, Acta Chem. Scand., 1970, 24, 145. [all data]

Putnam, McEachern, et al., 1965, 2
Putnam, W.E.; McEachern, D.M., Jr.; Kilpatrick, J.E., Entropy and related thermodynamic properties of acetonitrile (methyl cyanide), J. Chem. Phys., 1965, 42, 749-755. [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]

Meyer, Renner, et al., 1971
Meyer, Edwin F.; Renner, Terrence A.; Stec, Kenneth S., Cohesive energies in polar organic liquids. II. n-Alkane nitriles and the 1-chloro alkanes, J. Phys. Chem., 1971, 75, 5, 642-648, https://doi.org/10.1021/j100675a008 . [all data]

Dojcansky and Heinrich, 1974
Dojcansky, J.; Heinrich, J., Chem. Zvesti, 1974, 28, 157. [all data]

Baldt and Hall, 1971
Baldt, J.H.; Hall, H.K.K., Jr., Thermochemistry of strained-ring bridgehead nitriles and esters, J. Am. Chem. Soc., 1971, 93, 140-145. [all data]

Hall and Baldt, 1971
Hall, H.K., Jr.; Baldt, J.H., Thermochemistry of strained-ring bridgehead nitriles and esters, J. Am. Chem. Soc., 1971, 93, 140-145. [all data]

Kushchenko and Mishchenko, 1968
Kushchenko, V.V.; Mishchenko, K.P., Zh. Prikl. Khim., 1968, 41, 3, 646. [all data]

Putnam, McEachern, et al., 1965, 3
Putnam, William E.; McEachern, Douglas Marvin; Kilpatrick, John E., Entropy and Related Thermodynamic Properties of Acetonitrile (Methyl Cyanide), J. Chem. Phys., 1965, 42, 2, 749, https://doi.org/10.1063/1.1696002 . [all data]

Dojcansky and Heinrich, 1974, 2
Dojcansky, J.; Heinrich, J., Saturated Vapour Pressure of Acetonitrile, Chem. Zvesti, 1974, 28, 2, 157-159. [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]

Martin, 1982
Martin, C.A., Specific heat anomalies in some organic compounds, Therm. Anal., Proc. Int. Conf., 7th, 1982, 2, 829-835. [all data]


Notes

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