Main page (Russian) Search in database (English)

Properties of substance:

potassium peroxide

Group of substances:

inorganic

Physical appearance:

white cubic crystals

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

K2O2

Structural formula as text:

K2O2

Molar/atomic mass: 110.2

Melting point (°C):

490

Solubility (g/100 g of solvent):

water: reaction [Ref.]

Density:

2.18 (20°C, g/cm3)

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

-495.8 (s)

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

-429.8 (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)):

100.16 (s)

References:

  1. Вольнов И.И. Перекисные соединения щелочных металлов. - М.: Наука, 1980. - pp. 63-68 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 69 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru