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Properties of substance:

iron(III) nitrate nonahydrate

Group of substances:

inorganic

Physical appearance:

monoclinic crystals

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

H18FeN3O18

Structural formula as text:

Fe(NO3)3 * 9H2O

Molar/atomic mass: 403.997

Melting point (°C):

50.1

Decomposition temperature (°C):

60

Solubility (g/100 g of solvent):

acetone: soluble [Ref.]
diethyl ether: very soluble [Ref.]
ethanol: soluble [Ref.]
water: 67 (0°C) [Ref.]
water: 82.5 (20°C) [Ref.]
water: 87 (25°C) [Ref.]
water: 105 (40°C) [Ref.]

Hygroscopic:

yes

Density:

1.68 (21°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1, Ref.2, Ref.3, Ref.4]
    Fe + 4HNO3 + 7H2O → Fe(NO3)3 * 9H2O + NO

Reactions:

  1. [Ref.1]
    Fe(NO3)3 * 9H2O + CsNO3 → Cs[Fe(NO3)4] + 9H2O

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-3339 (s) [Ref.]

References:

  1. Keller A., Wlokas I., Kohns M., Hasse H. Solid-liquid Equilibria in Mixtures of Iron(III) Nitrate Nonahydrate and Ethanol or 1-Propanol / Fluid Phase Equilibria. - 2021. - Vol. 356, No. 8. - pp. 112987-1 - 112987-8 [DOI: 10.1016/j.fluid.2021.112987]
  2. Keller A., Wlokas I., Kohns M., Hasse H. Thermophysical Properties of Solutions of Iron(III) Nitrate-Nonahydrate in Mixtures of Ethanol and Water / Journal of Chemical and Engineering Data. - 2020. - Vol. 65, No. 7. - pp. 3519-3527 [DOI: 10.1021/acs.jced.0c00105]
  3. Journal of Thermal Analysis and Calorimetry. - 1999. - Vol. 58, No. 3. - pp. 647-651 [DOI: 10.1023/A:1010112814013]
  4. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 533-534
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 63 [Russian]
  6. Химическая технология неорганических веществ. - Кн.2, под ред. Ахметова Т.Г. - М.: Высшая школа, 2002. - pp. 422 [Russian]
  7. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 200 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru