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Properties of substance:

calcium metaphosphate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

CaO6P2

Structural formula as text:

Ca(PO3)2

Molar/atomic mass: 198.022

Melting point (°C):

984

Decomposition temperature (°C):

900

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

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

-2462 (s)

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

82.9

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 140-141 [Russian]
  2. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 451 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru