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Properties of substance:

strontium hydroxide

Group of substances:

inorganic

Physical appearance:

colorless crystals

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

H2O2Sr

Structural formula as text:

Sr(OH)2

Molar/atomic mass: 121.63

Melting point (°C):

375

Decomposition temperature (°C):

400

Solubility (g/100 g of solvent):

acetone: insoluble [Ref.]
methanol: soluble [Ref.]
water: 0.41 (0°C) [Ref.]
water: 0.56 (10°C) [Ref.]
water: 0.81 (20°C) [Ref.]
water: 1.01 (25°C) [Ref.]
water: 1.23 (30°C) [Ref.]
water: 1.77 (40°C) [Ref.]
water: 3.68 (60°C) [Ref.]
water: 8.3 (80°C) [Ref.]
water: 27.9 (100°C) [Ref.]

Hygroscopic:

very hygroscopic

Density:

3.625 (20°C, g/cm3)

Dissociation:

pKb (2) = 0.82 (25°C, water)

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

-959.4 (s)

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

-870.3 (s)

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

86.6 (s)

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

92 (s)

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

23

LD50 (mg/kg):

3160 (white rats, oral)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1517-1520
  2. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 363 [Russian]
  3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 99 [Russian]
  4. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 267 [Russian]
  5. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 547 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru