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Properties of substance:

magnesium orthosilicate

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

Mg2O4Si

Structural formula as text:

Mg2SiO4

Molar/atomic mass: 140.693

Melting point (°C):

1890

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

3.21 (20°C, g/cm3)

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

    -2172 (s)

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

    95 (s)

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

    119 (s)

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

    66.1

    References:

    1. 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