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Properties of substance:

magnesium hydride

Group of substances:

inorganic

Physical appearance:

white hexagonal crystals

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

H2Mg

Structural formula as text:

MgH2

Molar/atomic mass: 26.31

Decomposition temperature (°C):

280

Solubility (g/100 g of solvent):

diethyl ether: insoluble [Ref.]

Density:

1.45 (20°C, g/cm3)

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

-75.3 (s)

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

-35.9 (s)

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

31.1 (s)

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

35.4 (s)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-13
  2. Антонова М.М., Морозова Р.А. Препаративная химия гидридов. - Киев: Наукова думка, 1976. - pp. 54-56 [Russian]
  3. Жигач А.Ф., Стасиневич Д.С. Химия гидридов. - Л.: Химия, 1969. - pp. 85-88 [Russian]
  4. Синтезы неорганических соединений. - Т.1, под ред. Джолли У. - М.: Мир, 1966. - pp. 244-245 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru