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Properties of substance:

silver selenide

Group of substances:

inorganic

Physical appearance:

gray rhombic crystals

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

Ag2Se

Structural formula as text:

Ag2Se

Molar/atomic mass: 294.696

Melting point (°C):

897

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

8 (20°C, g/cm3)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-37.999 (s) [Ref.]

Standard molar Gibbs energy of formation ΔfG (298 K, kJ/mol)

-44.886 (s) [Ref.]

Standard molar entropy S (298 K, J/(mol·K))

150.712 (s) [Ref.]

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

81.76 (s) [Ref.]

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 192-193 [Russian]
  2. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 269 [Russian]
  3. Оболончик В.А. Селениды. – М.: Металлургия, 1972. - pp. 107-110 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru