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Properties of substance:

magnesium sulfite hexahydrate

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

H12MgO9S

Structural formula as text:

MgSO3 * 6H2O

Molar/atomic mass: 212.46

Decomposition temperature (°C):

200

Solubility (g/100 g of solvent):

ammonia liquid : insoluble [Ref.]
ethanol: insoluble [Ref.]

Density:

1.72 (20°C, g/cm3)

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

-2824 (s)

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

351 (s)

References:

  1. Journal of Chemical and Engineering Data. - 1994. - Vol. 39, No. 1. - pp. 161-162
  2. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 985
  3. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 152-153 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru