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Properties of substance:

potassium selenide

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

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

K2Se

Structural formula as text:

K2Se

Molar/atomic mass: 157.157

Melting point (°C):

800

Hygroscopic:

yes

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

-375 (s)

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

120 (s)

References:

  1. Волков А.И., Жарский И.М. Большой химический справочник. - Минск: Современная школа, 2005. - pp. 161 [Russian]
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 130-131 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru