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Properties of substance:

manganous fluoride

Synonyms:

manganese(II) fluoride

Group of substances:

inorganic

Physical appearance:

tetragonal crystals

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

F2Mn

Structural formula as text:

MnF2

Molar/atomic mass: 92.93

Melting point (°C):

860

Boiling point (°C):

1637

CAS №: 7782-64-1

Solubility (g/100 g of solvent):

ammonia liquid : slightly soluble [Ref.]
diethyl ether: insoluble [Ref.]
ethanol: insoluble [Ref.]
hydrogen fluoride : 0.134 (-25.2°C) [Ref.]
hydrogen fluoride : 0.164 (11.5°C) [Ref.]
water: 1.06 (20°C) [Ref.]
water: 0.66 (40°C) [Ref.]
water: 0.48 (100°C) [Ref.]

Density:

3.92 (20°C, g/cm3)

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

-846.7 (s)

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

-804.6 (s)

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

93.3 (s)

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

67.95 (s)

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

14.2

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

256

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

-528 (g)

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

270 (g)

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

53 (g)

Neel temperature (K):

67.3

References:

  1. Journal of Fluorine Chemistry. - 1972. - Vol. 2, No. 1. - pp. 33-51
  2. Simons J.H. Fluorine Chemistry. - Vol. 5. - New York: Academic Press, 1964. - pp. 75
  3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 79 [Russian]
  4. Рысс И.Г. Химия фтора и его неорганических соединений. - М., 1956. - pp. 615-617 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 346 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 998 [Russian]
  7. Фтор и его соединения. – Под ред. Саймонса Дж., Т. 1. - М.: ИИЛ, 1953. - pp. 55-56 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru