Main page (Russian) Search in database (English)

Properties of substance:

hafnium fluoride

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

F4Hf

Structural formula as text:

HfF4

Molar/atomic mass: 254.48

Sublimation point (°C):

974

Solubility (g/100 g of solvent):

hydrogen fluoride : soluble [Ref.]
water: insoluble [Ref.]

Density:

7.13 (20°C, g/cm3)

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

-1930 (s)

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

-1830 (s)

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

113 (s)

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

92 (s)

ΔHsublimation (kJ/mol):

226

References:

  1. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 61 [Russian]
  2. Шека И.А., Карлышева К.Ф. Химия гафния. - Киев: Наукова думка, 1973. - pp. 161-164 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru