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Properties of substance:

zirconium(IV) fluoride

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

F4Zr

Structural formula as text:

ZrF4

Molar/atomic mass: 167.21

Melting point (°C):

903

Boiling point (°C):

918

Sublimation point (°C):

903

Solubility (g/100 g of solvent):

bromine trifluoride: insoluble (25°C) [Ref.]
hydrogen fluoride : 0.023 (-23.1°C) [Ref.]
hydrogen fluoride : 0.015 (-8.3°C) [Ref.]
hydrogen fluoride : 0.009 (12.4°C) [Ref.]
water: 1.5 (25°C) [Ref.]
water: 1.39 (50°C) [Ref.]

Density:

4.43 (20°C, g/cm3)

Vapour pressure (Torr):

1 (651°C)
10 (725°C)
100 (813°C)

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

-1911.3 (s)

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

-1809.9 (s)

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

104.6 (s)

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

103.6 (s)

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

64.2

ΔHsublimation (kJ/mol):

216.1

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

-1674 (g)

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

319 (g)

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

87 (g)

References:

  1. Годнева М.М., Мотов Д.Л. Химия фтористых соединений циркония и гафния. - Л.: Наука, 1971. - pp. 10-20 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 114 [Russian]
  3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 882 [Russian]
  4. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 386 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru