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Properties of substance:

zinc fluoride

Group of substances:

inorganic

Physical appearance:

colorless tetragonal crystals

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

F2Zn

Structural formula as text:

ZnF2

Molar/atomic mass: 103.38

Melting point (°C):

872

Boiling point (°C):

1505

Solubility (g/100 g of solvent):

ammonia liquid : insoluble [Ref.]
ethanol: insoluble [Ref.]
hydrogen fluoride : 0.016 (-23°C) [Ref.]
hydrogen fluoride : 0.019 (-4.4°C) [Ref.]
hydrogen fluoride : 0.024 (14.2°C) [Ref.]
water: 1.6 (20°C) [Ref.]

Density:

4.84 (15°C, g/cm3)

Vapour pressure (Torr):

1 (922°C)
10 (1070°C)
100 (1266°C)

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

-764.4 (s)

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

-713.5 (s)

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

73.68 (s)

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

65.65 (s)

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

41.8

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

185

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

-498 (g)

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

254.4 (g)

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

51.9 (g)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1585
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 113 [Russian]
  3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 793 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru