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Properties of substance:

radium sulfate

Group of substances:

inorganic

Physical appearance:

colorless orthorhombic crystals

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

O4RaS

Structural formula as text:

RaSO4

Molar/atomic mass: 322.08

Decomposition temperature (°C):

1600

Solubility (g/100 g of solvent):

sulfuric acid: soluble [Ref.]
water: 0.00021 (20°C) [Ref.]

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

-1473 (s)

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

-1364 (s)

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

134 (s)

References:

  1. Matyskin A.V. On the solubility of radium sulfate and carbonate. - Thesis for the degree of licentiate of engineering. - Gothenburg, 2016
  2. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1428
  3. Вдовенко В.М., Дубасов Ю.В. Аналитическая химия радия. - Л.: Наука, 1973. - pp. 37-41 [Russian]
  4. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 159 [Russian]
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 91 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru