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Properties of substance:

chromium(III) sulfate

Group of substances:

inorganic

Physical appearance:

hexagonal crystals

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

Cr2O12S3

Structural formula as text:

Cr2(SO4)3

Molar/atomic mass: 392.18

Decomposition temperature (°C):

700-735

Solubility (g/100 g of solvent):

ethanol: slightly soluble [Ref.]
ethyl acetate: insoluble [Ref.]
methylamine: insoluble [Ref.]
water: 64 (25°C) [Ref.]

Numerical data:

Magnetic susceptibility (mm3/kg): 30.1

Density:

3.01 (20°C, g/cm3)

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

-3308 (s)

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

-2984 (s)

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

287.9 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

280.7 (s)

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 212-213 [Russian]
  2. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 379 [Russian]
  3. Неорганические соединения хрома: Справочник. - Л.: Химия, 1981. - pp. 195 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 111 [Russian]
  5. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 313 [Russian]
  6. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 667 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru