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Properties of substance:

Physical appearance:

colorless monoclinic crystals

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


Structural formula as text:

MgSO4 · H2O

Molar/atomic mass: 138.38

Destruction point (°C):


Solubility (g/100 g of solvent):

water: very soluble [Ref.]


2.44 (20°C, g/cm3)

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

    -1610.4 (s)

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

    126 (s)

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

    134 (s)

    Энтальпия растворения ΔHраств (кДж/моль)

    -55,7 (s) [Ref.]


    1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 152-153
    2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 78
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      © Collected Ruslan Anatolievich Kiper,