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Properties of substance:

tungsten(IV) oxide

Group of substances:

inorganic

Physical appearance:

brown tetragonal crystals

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

O2W

Structural formula as text:

WO2

Molar/atomic mass: 215.85

Melting point (°C):

1500

Boiling point (°C):

1700

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

12.11 (20°C, g/cm3)

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

-589 (s)

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

50 (s)

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

56 (s)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-97
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 60 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru