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Properties of substance:

sodium divanadate

Group of substances:

inorganic

Physical appearance:

colorless hexagonal crystals

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

Na2O7V2

Structural formula as text:

Na2V2O7

Molar/atomic mass: 259.858

Melting point (°C):

660

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 63.29 (35°C) [Ref.]

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

-2920 (s)

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

318 (s)

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

269.7 (s)

References:

  1. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 12ed., Vol. 1-5. - Wiley, 2012. - pp. 4039
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 164-165 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru