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Disilane, hexamethyl-

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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:
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
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil386.KN/AFarchan Laboratories, 1990BS
Tboil386.KN/APCR Inc., 1990BS
Quantity Value Units Method Reference Comment
Tfus287.1KN/ATakagi, Ishikawa, et al., 1986Uncertainty assigned by TRC = 0.1 K; TRC
Tfus287.22KN/ATakagi, Ishikawa, et al., 1986Uncertainty assigned by TRC = 0.05 K; TRC
Tfus287.7KN/ASuga and Seki, 1959Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
8.68320.EBTakagi, Ishikawa, et al., 1986, 2Based on data from 305. - 387. K.; AC
8.89288. - 310.N/ASuga and Seki, 1959, 2See also Takagi, Ishikawa, et al., 1986, 2.; AC
8.80294. - 334.N/ABrockway and Davidson, 1941See also Takagi, Ishikawa, et al., 1986, 2.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
0.722287.7Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
10.50221.8Domalski and Hearing, 1996CAL
2.507287.7

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
2.330221.8crystaline, IIcrystaline, ISuga and Seki, 1959, 2DH
0.7211287.7crystaline, IliquidSuga and Seki, 1959, 2DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
10.51221.8crystaline, IIcrystaline, ISuga and Seki, 1959, 2DH
2.507287.7crystaline, IliquidSuga and Seki, 1959, 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.

Farchan Laboratories, 1990
Farchan Laboratories, Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [all data]

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

Takagi, Ishikawa, et al., 1986
Takagi, S.; Ishikawa, M.; Kumada, M.; Kimura, T.; Fujishiro, R., Vapor Pressure and Thermo. Prop. of Hexamethyldisilane at 305-387 K, Thermochim. Acta, 1986, 109, 55. [all data]

Suga and Seki, 1959
Suga, H.; Seki, S., On the phase transition of hexamethyldisilane, Bull. Chem. Soc. Jpn., 1959, 32, 1088. [all data]

Takagi, Ishikawa, et al., 1986, 2
Takagi, Sadao; Ishikawa, Mitsuo; Kumada, Makoto; Kimura, Takayoshi; Fujishiro, Ryoichi, Vapour pressure and thermodynamic properties of hexamethyldisilane at 305--387 K, Thermochimica Acta, 1986, 109, 1, 55-61, https://doi.org/10.1016/0040-6031(86)85007-9 . [all data]

Suga and Seki, 1959, 2
Suga, H.; Seki, S., On the phase transition of hexamethyldisilane, Bull. Chem. Soc. Japan, 1959, 32, 1088-1093. [all data]

Brockway and Davidson, 1941
Brockway, L.O.; Davidson, N.R., The Molecular Structures of the Dimers of Aluminum Dimethyl Chloride, Aluminum Dimethyl Bromide, and Aluminum Trimethyl and of Hexamethyldisilane, J. Am. Chem. Soc., 1941, 63, 12, 3287-3297, https://doi.org/10.1021/ja01857a018 . [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]


Notes

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