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Properties of substance:

molybdenum(VI) fluoride

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

F6Mo

Structural formula as text:

MoF6

Molar/atomic mass: 209.93

Melting point (°C):

17.6

Boiling point (°C):

33.9

Solubility (g/100 g of solvent):

hydrogen fluoride : 16.66 (0°C) [Ref.]
sulfuric acid: sparingly soluble [Ref.]

Density:

2.55 (17.5°C, g/cm3)

Reactions:

  1. [Ref.1]
    ClNO3 + NaCl → Cl2 + NaNO3

Vapour pressure (Torr):

1 (-67°C)
10 (-41.2°C)
100 (-8.2°C)

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

-1585.4 (l)

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

-1473 (l)

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

259.7 (l)

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

169.8 (l)

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

4.33

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

27.25

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

-1557.7 (g)

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

351 (g)

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

120.5 (g)

References:

  1. Houben-Weyl Methods in Organic Chemistry. - vol.E-10a: ORGANOFLUORINE COMPOUNDS. - Thieme Verlag, Stuttgart, 1998. - pp. 679-681
  2. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 374 [Russian]
  3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 82 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru