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Properties of substance:

iron(III) phosphate dihydrate

Group of substances:

inorganic

Physical appearance:

monoclinic crystals

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

H4FeO6P

Structural formula as text:

FePO4 * 2H2O

Molar/atomic mass: 186.86

Decomposition temperature (°C):

250

Solubility (g/100 g of solvent):

water: very slightly soluble [Ref.]
water: 0.67 (100°C) [Ref.]

Density:

2.87 (20°C, g/cm3)

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

-1888 (s)

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

171.3 (s)

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

180.5 (s)

References:

  1. Синтезы неорганических соединений. - Т.2, под ред. Джолли У. - М.: Мир, 1967. - pp. 213-214 [Russian]
  2. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 62-63 [Russian]
  3. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 137 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru