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Properties of substance:

potassium selenate

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

K2O4Se

Structural formula as text:

K2SeO4

Molar/atomic mass: 221.154

Melting point (°C):

1020

Solubility (g/100 g of solvent):

water: 107.5 (0°C) [Ref.]
water: 111 (20°C) [Ref.]
water: 117.4 (50°C) [Ref.]
water: 122.2 (100°C) [Ref.]

Density:

3.07 (20°C, g/cm3)

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

-1120 (s)

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

180 (s)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 884-885
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 130-131 [Russian]
  3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 168 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru