Main page (Russian) Search in database (English)

Properties of substance:

vanadium(IV) oxide

Group of substances:

inorganic

Physical appearance:

blue tetragonal crystals

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

O2V

Structural formula as text:

VO2

Molar/atomic mass: 82.94

Melting point (°C):

1545

Boiling point (°C):

2700

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Hygroscopic:

yes

Density:

4.34 (20°C, g/cm3)

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

-720 (s)

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

-665 (s)

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

51.57 (s)

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

59.2 (s)

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

56.92

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 106-107 [Russian]
  2. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 487-488 [Russian]
  3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 58 [Russian]
  4. Энциклопедия для детей. - Т.17: Химия. - М.: Аванта+, 2004. - pp. 258 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru