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Properties of substance:

hexafluorodisilane

Group of substances:

inorganic

Physical appearance:

colorless gas

Empirical formula (Hill's system for organic substances):

F6Si2

Structural formula as text:

Si2F6

Molar/atomic mass: 170.161

Sublimation point (°C):

-19.1

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-2427 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-2299.7 (s)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

219.1 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

129.5 (s)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-2383.3 (g)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-2307.3 (g)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

391 (g)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

129.9 (g)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-12
  2. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 169 [Russian]
  3. Рысс И.Г. Химия фтора и его неорганических соединений. - М., 1956. - pp. 308-309 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru