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Properties of substance:

rubidium chloride

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

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

ClRb

Structural formula as text:

RbCl

Molar/atomic mass: 120.92

Melting point (°C):

717

Boiling point (°C):

1390

Solubility (g/100 g of solvent):

acetone: 0.00021 (18°C) [Ref.]
acetone: 0.00024 (37°C) [Ref.]
acetonitrile: 0.0034 (18°C) [Ref.]
acetonitrile: 0.0036 (25°C) [Ref.]
acetophenone: sparingly soluble [Ref.]
ammonia liquid : 0.29 (0°C) [Ref.]
amyl alcohol: 0.0025 (25°C) [Ref.]
antimony trichloride: soluble [Ref.]
bromine liquid: 0.015 (25°C) [Ref.]
butyl acetate: sparingly soluble [Ref.]
ethanol: 0.078 (25°C) [Ref.]
ethyl acetate: sparingly soluble [Ref.]
formic acid: 60.2 (18°C) [Ref.]
formic acid: 56.9 (25°C) [Ref.]
hydrazine: 5 (20°C) [Ref.]
i-amyl alcohol: 0.027 (25°C) [Ref.]
iodine monochloride: soluble [Ref.]
methanol: 0.86 (0°C) [Ref.]
methanol: 1.299 (25°C) [Ref.]
methanol: 1.423 (50°C) [Ref.]
methyl ethyl ketone: sparingly soluble [Ref.]
monochlorbenzene: insoluble [Ref.]
phosphorus(V) trichloride oxide: 0.053 (20°C) [Ref.]
propanol: 0.015 (25°C) [Ref.]
pyridine: insoluble [Ref.]
selenium(IV) oxychloride: 3.56 (25°C) [Ref.]
sulfur dioxide: 0.329 (0°C) [Ref.]
water: 77 (0°C) [Ref.]
water: 84.4 (10°C) [Ref.]
water: 91.1 (20°C) [Ref.]
water: 94.2 (25°C) [Ref.]
water: 97.6 (30°C) [Ref.]
water: 103.5 (40°C) [Ref.]
water: 115.5 (60°C) [Ref.]
water: 127.2 (80°C) [Ref.]
water: 138.9 (100°C) [Ref.]

Density:

2.76 (20°C, g/cm3)

Vapour pressure (Torr):

0.1 (668°C)
1 (777°C)
10 (919°C)
100 (1112°C)

Surface tension (mN/m):

95 (760°C)
91 (800°C)
87 (850°C)
83 (900°C)
74 (1000°C)

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

-430.6 (s)

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

-405.8 (s)

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

91.6 (s)

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

51.5 (s)

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

18.4

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

154.5

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

-226 (g)

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

249.58 (g)

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

36.84 (g)

LD50 (mg/kg):

3800 (mice, oral)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1433-1434
  2. Вредные химические вещества: Неорганические соединения элементов I-IV групп. Справочник. - Л.: Химия, 1988. - pp. 53 [Russian]
  3. Плющев В.Е., Степин Б.Д. Аналитическая химия рубидия и цезия. - М.: Наука, 1975. - pp. 22-27 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 94 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 189, 711-713 [Russian]
  6. Химия и технология редких и рассеянных элементов. - Ч.1. - М.: Высшая школа, 1976. - pp. 101-103 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru