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Properties of substance:

gold(III) fluoride

Group of substances:

inorganic

Physical appearance:

orange-yellow needles crystals

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

AuF3

Structural formula as text:

AuF3

Molar/atomic mass: 253.96

Decomposition temperature (°C):

500

Solubility (g/100 g of solvent):

bromine trifluoride: soluble [Ref.]
ethanol: reaction [Ref.]
water: reaction [Ref.]

Density:

6.7 (20°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1]
    2Au + 3F2 → 2AuF3

Reactions:

  1. [Ref.1]
    2AuF3 → 2Au + 3F2
  2. [Ref.1, Ref.2]
    AuF3 + 3H2O → Au(OH)3 + 3HF

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

-363.6 (s)

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

114.2 (s)

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

91.3 (s)

References:

  1. Binneweis M., Milke E. Thermochemical Data of Elements and Compounds. - 2ed, 2002. - pp. 85
  2. Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 507 [Russian]
  3. Паддефет Р. Химия золота. - М.: Мир, 1982. - pp. 37-38 [Russian]
  4. Рысс И.Г. Химия фтора и его неорганических соединений. - М., 1956. - pp. 568 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru