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Properties of substance:

arsenic(V) fluoride

Group of substances:

inorganic

Physical appearance:

colorless gas

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

AsF5

Structural formula as text:

AsF5

Molar/atomic mass: 169.914

Melting point (°C):

-79.8

Boiling point (°C):

-52.8

Solubility (g/100 g of solvent):

bromine trifluoride: soluble [Ref.]

Density:

2.33 (-53°C, g/cm3)

Reactions:

  1. Yeild 80%. [Ref.1aster]
    4OF2 + 2AsF5 → 2O2AsF6 + 3F2
  2. [Ref.1aster]
    N2F2 + AsF5 → N2F[AsF6]
  3. [Ref.1]
    2AgF3 + 2AsF5 → 2AgFAsF6 + F2

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

-1236.7 (g)

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

11.5

Enthalpy (heat) of vaporization at boiling point ΔvapH (kJ/mol)

20.8 (l) [Ref.]

References:

  1. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.17
  2. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 524 [Russian]
  3. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 162-163 [Russian]
  4. Фтор и его соединения. – Под ред. Саймонса Дж., Т. 1. - М.: ИИЛ, 1953. - pp. 91-92 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru