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Properties of substance:

rubidium bromide

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

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

BrRb

Structural formula as text:

RbBr

Molar/atomic mass: 165.38

Melting point (°C):

682

Boiling point (°C):

1340

Solubility (g/100 g of solvent):

acetone: 0.00505 (18°C) [Ref.]
acetone: 0.0047 (37°C) [Ref.]
acetonitrile: 0.061 (18°C) [Ref.]
acetonitrile: 0.047 (25°C) [Ref.]
ammonia liquid : 22.3 (0°C) [Ref.]
bromine liquid: 0.058 (25°C) [Ref.]
ethanol: 0.078 (25°C) [Ref.]
formic acid: 49.8 (18°C) [Ref.]
formic acid: 50.6 (25°C) [Ref.]
methanol: 2.58 (18°C) [Ref.]
methanol: 2.52 (25°C) [Ref.]
sulfur dioxide: soluble [Ref.]
water: 89 (0°C) [Ref.]
water: 113 (25°C) [Ref.]
water: 132 (40°C) [Ref.]
water: 155 (60°C) [Ref.]
water: 191 (100°C) [Ref.]

Density:

3.35 (20°C, g/cm3)

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

-394.6 (s)

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

110 (s)

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

52.7 (s)

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

23.3

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

-194 (g)

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

261 (g)

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

37.22 (g)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1429
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 184-185 [Russian]
  3. Плющев В.Е., Степин Б.Д. Аналитическая химия рубидия и цезия. - М.: Наука, 1975. - pp. 22-27 [Russian]
  4. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 189, 713 [Russian]
  5. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 186-187 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru