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Properties of substance:

magnesium pyrophosphate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

Mg2O7P2

Structural formula as text:

Mg2P2O7

Molar/atomic mass: 222.553

Melting point (°C):

1395

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: insoluble [Ref.]

Density:

2.56 (20°C, g/cm3)

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

154.9 (s)

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

177.9 (s)

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

134

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-74
  2. 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