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Properties of substance:

magnesium bromide

Group of substances:

inorganic

Physical appearance:

colorless trigonal crystals

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

Br2Mg

Structural formula as text:

MgBr2

Molar/atomic mass: 184.11

Melting point (°C):

711

Boiling point (°C):

1250

Solubility (g/100 g of solvent):

acetic acid: 0.2 (20°C) [Ref.]
acetic acid: 0.51 (30°C) [Ref.]
acetic acid: 1.54 (50°C) [Ref.]
acetic acid: 2.74 (60°C) [Ref.]
acetic acid: 14.9 (80°C) [Ref.]
acetic acid: 32.1 (100°C) [Ref.]
acetone: 0.1 (0°C) [Ref.]
acetone: 0.6 (20°C) [Ref.]
acetone: 1 (40°C) [Ref.]
acetonitrile: 17 (25°C) [Ref.]
ammonia liquid : 0.004 (0°C) [Ref.]
bromine liquid: 0.002 (25°C) [Ref.]
diethyl ether: 0.27 (-20°C) [Ref.]
diethyl ether: 0.4 (-10°C) [Ref.]
diethyl ether: 0.7 (0°C) [Ref.]
diethyl ether: 0.84 (3°C) [Ref.]
diethyl ether: 1.19 (10.1°C) [Ref.]
diethyl ether: 1.76 (15°C) [Ref.]
diethyl ether: 2.14 (18°C) [Ref.]
diethyl ether: 2.52 (20°C) [Ref.]
ethanol: 7.4 (0°C) [Ref.]
ethanol: 15.1 (20°C) [Ref.]
ethanol: 23.6 (40°C) [Ref.]
ethanol: 39.9 (75°C) [Ref.]
formic acid: 24.8 (0°C) [Ref.]
formic acid: 29.9 (20°C) [Ref.]
formic acid: 35.1 (40°C) [Ref.]
formic acid: 66.7 (88°C) [Ref.]
methanol: 26.3 (0°C) [Ref.]
methanol: 27.9 (20°C) [Ref.]
methanol: 29.7 (40°C) [Ref.]
methanol: 31.4 (60°C) [Ref.]
propylene carbonate: very soluble [Ref.]
pyridine: 0.55 (25°C) [Ref.]
pyridine: 2.6 (60°C) [Ref.]
sulfur dioxide: 0.024 (0°C) [Ref.]
water: 99.2 (10°C) [Ref.]
water: 101.1 (20°C) [Ref.]
water: 103.3 (25°C) [Ref.]
water: 106.5 (40°C) [Ref.]
water: 112 (60°C) [Ref.]
water: 125.4 (100°C) [Ref.]

Hygroscopic:

yes

Density:

3.72 (20°C, g/cm3)

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

-517.6 (s)

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

117 (s)

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

70 (s)

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

34.7

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

151

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

-299 (g)

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

296 (g)

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

58.5 (g)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 935-936
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 150-151 [Russian]
  3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 77 [Russian]
  4. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 235, 761-762 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru