Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Silane, tetramethyl-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Phase change data

Go To: Top, 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

Quantity Value Units Method Reference Comment
Tboil299.7KN/APCR Inc., 1990BS
Tboil299.KN/ASommer, Goldberg, et al., 1946Uncertainty assigned by TRC = 3. K; ~; TRC
Quantity Value Units Method Reference Comment
Ttriple172. ± 5.KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tc448.640KN/AMcGlashan and McKinnon, 1977Uncertainty assigned by TRC = 0.03 K; TRC
Quantity Value Units Method Reference Comment
Pc27.84atmN/AMcGlashan and McKinnon, 1977Uncertainty assigned by TRC = 0.01 atm; TRC
Quantity Value Units Method Reference Comment
Vc0.362l/molN/AMcGlashan and McKinnon, 1977Uncertainty assigned by TRC = 0.008 l/mol; TRC
Quantity Value Units Method Reference Comment
Deltavap6.2 ± 0.1kcal/molCVoronkov, Baryshok, et al., 1988AC

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
5.7849299.80N/AAston, Kennedy, et al., 1941P = 101.325 kPa; DH
5.78 ± 0.02299.CBergmann and Haskelberg, 1941AC

Entropy of vaporization

DeltavapS (cal/mol*K) Temperature (K) Reference Comment
19.29299.80Aston, Kennedy, et al., 1941P; 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
208.93 - 293.643.971321047.272-36.057Aston, Kennedy, et al., 1941Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
1.61174.Domalski and Hearing, 1996AC

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.168165.920crystaline, «alpha»liquidHarada, Atake, et al., 1977DH
1.405171.016crystaline, «beta»liquidHarada, Atake, et al., 1977DH
1.396070.983crystaline, IIliquidShinoda, Enokida, et al., 1973Metastable form.; DH
1.6112174.049crystaline, IliquidShinoda, Enokida, et al., 1973Stable form.; DH
1.4268171.04crystaline, IliquidAston, Kennedy, et al., 1941DH
1.648174.12crystaline, IIliquidAston, Kennedy, et al., 1941DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
1.01165.920crystaline, «alpha»liquidHarada, Atake, et al., 1977DH
8.215171.016crystaline, «beta»liquidHarada, Atake, et al., 1977DH
8.16470.983crystaline, IIliquidShinoda, Enokida, et al., 1973Metastable; DH
9.257174.049crystaline, IliquidShinoda, Enokida, et al., 1973Stable; DH
8.341171.04crystaline, IliquidAston, Kennedy, et al., 1941DH
9.465174.12crystaline, IIliquidAston, Kennedy, et al., 1941DH

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.

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Sommer, Goldberg, et al., 1946
Sommer, L.H.; Goldberg, G.M.; Derfman, E.; Whitmore, F.C., Organisilicaon Compounds V. «beta»-Elimination Involving Silicon, J. Am. Chem. Soc., 1946, 68, 1083. [all data]

McGlashan and McKinnon, 1977
McGlashan, M.L.; McKinnon, I.R., The vapor pressure, orthobaric volumes, and critical constants of tetramethylsilane, J. Chem. Thermodyn., 1977, 9, 1205-12. [all data]

Voronkov, Baryshok, et al., 1988
Voronkov, M.G.; Baryshok, V.P.; Klyuchnikov, V.A.; Danilova, T.F.; Pepekin, V.I.; Korchagina, A.N.; Khudobin, Yu.I., Thermochemistry of organosilicon compounds, Journal of Organometallic Chemistry, 1988, 345, 1-2, 27-38, https://doi.org/10.1016/0022-328X(88)80231-6 . [all data]

Aston, Kennedy, et al., 1941
Aston, J.G.; Kennedy, R.M.; Messerly, G.H., The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of silicon tetramethyl, J. Am. Chem. Soc., 1941, 63, 2343-2348. [all data]

Bergmann and Haskelberg, 1941
Bergmann, F.; Haskelberg, L., Synthesis of Lipophilic Chemotherapeuticals. V. N 4 -Acyl-sulfanilamides 1a, J. Am. Chem. Soc., 1941, 63, 8, 2243-2245, https://doi.org/10.1021/ja01853a062 . [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]

Harada, Atake, et al., 1977
Harada, M.; Atake, T.; Chihara, H., Thermodynamic properties of polymorphic phases of tetramethylsilane, J. Chem. Thermodynam., 1977, 9, 523-534. [all data]

Shinoda, Enokida, et al., 1973
Shinoda, T.; Enokida, H.; Maeda, Y.; Tomita, H.; Mashiko, Y., Heat capacity of tetramethylsilane in the range from 2 to 26 K and premelting range, Bull. Chem. Soc. Japan, 1973, 46, 48-52. [all data]


Notes

Go To: Top, Phase change data, References