Germane, tetramethyl-

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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
MS - José A. Martinho Simões
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Ttriple184.360KN/AValerga and Kilpatrick, 1970Uncertainty assigned by TRC = 0.01 K; TRC
Quantity Value Units Method Reference Comment
Δvap27.3 ± 0.4kJ/molCC-SBAbraham and Irving, 1980Other values for the enthalpy of vaporization have been reported: 27.6 ± 2.1 kJ/mol Shaulov, Federov, et al., 1969 and 28.5 kJ/mol Long and Pulford, 1986.; MS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
28.125285.N/AValerga and Kilpatrick, 1970, 2P = 1 atm; DH
28.1 ± 0.1285.CValerga, 1970AC

Entropy of vaporization

ΔvapS (J/mol*K) Temperature (K) Reference Comment
98.7285.Valerga and Kilpatrick, 1970, 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
200.0 - 317.4.11101166.492-33.005Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
7.4471184.368Valerga and Kilpatrick, 1970, 2DH
7.45184.4Valerga, 1970AC

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
40.39184.368Valerga and Kilpatrick, 1970, 2DH

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

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

Valerga and Kilpatrick, 1970
Valerga, A.J.; Kilpatrick, J.E., Entropy and Related Thermodynamic Properties of Tetramethylgermane, J. Chem. Phys., 1970, 52, 9, 4545, https://doi.org/10.1063/1.1673681 . [all data]

Abraham and Irving, 1980
Abraham, M.H.; Irving, R.J., J. Chem. Thermodyn., 1980, 12, 539. [all data]

Shaulov, Federov, et al., 1969
Shaulov, Yu.Kh.; Federov, A.K.; Genchel, V.G., Russ. J. Phys. Chem., 1969, 43, 744. [all data]

Long and Pulford, 1986
Long, L.H.; Pulford, C.I., J. Chem. Soc., Faraday Trans. 2, 1986, 82, 567. [all data]

Valerga and Kilpatrick, 1970, 2
Valerga, A.J.; Kilpatrick, J.E., Entropy related thermodynamic properties of tetramethylgermane, J. Chem. Phys., 1970, 52, 4545-4549. [all data]

Valerga, 1970
Valerga, Antone J., Entropy and Related Thermodynamic Properties of Tetramethylgermane, J. Chem. Phys., 1970, 52, 9, 4545, https://doi.org/10.1063/1.1673681 . [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]


Notes

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