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Properties of substance:

potassium molybdate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

K2MoO4

Structural formula as text:

K2MoO4

Molar/atomic mass: 238.134

Melting point (°C):

926

Decomposition temperature (°C):

1400

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 179.49 (9°C) [Ref.]
water: 182.25 (25°C) [Ref.]
water: 188.18 (52.88°C) [Ref.]
water: 198.86 (89.96°C) [Ref.]
water: 208.64 (119°C) [Ref.]

Density:

2.91 (25°C, g/cm3)

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

-1498 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-1381 (s)

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

176 (s)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

39

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-83
  2. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 830
  3. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 128-129 [Russian]
  4. Каров З.Г., Мохосоев М.В. Растворимость и свойства растворов соединений молибдена и вольфрама. - Новосибирск: ВО Наука, 1993. - pp. 64-70 [Russian]
  5. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 480 [Russian]
  6. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 125 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru