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Properties of substance:

tetrafluorosilane

Synonyms:

silicon tetrafluoride

Group of substances:

inorganic

Physical appearance:

colorless gas

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

F4Si

Structural formula as text:

SiF4

Molar/atomic mass: 104.08

Sublimation point (°C):

-95.2

Solubility (g/100 g of solvent):

1-butanol: 30.5 (30°C) [Ref.]
2-propanol: 39.3 (30°C) [Ref.]
acetic acid: 1.1 (30°C) [Ref.]
acetone: 3.2 (30°C) [Ref.]
amyl alcohol: 20.9 (30°C) [Ref.]
benzene: slightly soluble [Ref.]
bromine trifluoride: soluble [Ref.]
carbon tetrachloride: insoluble [Ref.]
diethyl ether: 0.56 (-80°C) [Ref.]
diethyl ether: 2.75 (20°C) [Ref.]
ethanol 91%: 64 (30°C) [Ref.]
ethanol abs.: 60.7 (30°C) [Ref.]
ethylene glycol : 35.5 (30°C) [Ref.]
glycerol: 6 (30°C) [Ref.]
hydrogen fluoride : insoluble [Ref.]
hydrogen fluoride 96%: 0.05 (15°C) [Ref.]
methanol: 48.8 (30°C) [Ref.]
nitric acid: insoluble [Ref.]
trichloroethylene: slightly soluble [Ref.]
vaseline oil: sparingly soluble [Ref.]
water: soluble with reaction 140.6 [Ref.]

Numerical data:

Year of discovery: 1771

Density:

0.004684 (0°C, g/cm3)

Vapour pressure (Torr):

1 (-144°C)
10 (-131°C)
100 (-144°C)

Dipole moment (D):

0 (20°C)

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

-1614.9 (g)

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

-1572.5 (g)

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

282 (g)

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

73.6 (g)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

9.38

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

15.36

ΔHsublimation (kJ/mol):

5.91

Critical temperature (°C):

-14.15

Critical density (g/cm3):

3.715

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1487
  2. Андрианов К.А. Кремнийорганические соединения. - М.: ГНТИХЛ, 1955. - pp. 51-74 [Russian]
  3. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 585-586 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 75 [Russian]
  5. Реми Г. Курс неорганической химии. - Т.1. - М., 1963. - pp. 522-523 [Russian]
  6. Рысс И.Г. Химия фтора и его неорганических соединений. - М., 1956. - pp. 293-308 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 874-875 [Russian]
  8. Успехи химии. - 1974. - Т.43, №7. - pp. 1186-1206 [Russian]
  9. Фтор и его соединения. – Под ред. Саймонса Дж., Т. 1. - М.: ИИЛ, 1953. - pp. 96-97 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru