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Properties of substance:

aluminum fluoride

Synonyms:

aluminium fluoride

Group of substances:

inorganic

Physical appearance:

colorless trigonal crystals

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

AlF3

Structural formula as text:

AlF3

Molar/atomic mass: 83.98

Melting point (°C):

1290

Sublimation point (°C):

1272

Solubility (g/100 g of solvent):

acetone: insoluble [Ref.]
bromine trifluoride: 0.0195 (25°C) [Ref.]
bromine trifluoride: 0.0038 (70°C) [Ref.]
ethyl acetate: insoluble [Ref.]
hydrogen fluoride : 0.004 (-24.2°C) [Ref.]
hydrogen fluoride : 0.003 (-5.1°C) [Ref.]
hydrogen fluoride : 0.002 (11.2°C) [Ref.]
hydrogen fluoride 10%: 2.6 (20°C) [Ref.]
phosphorus(V) trichloride oxide: 0.05 (20°C) [Ref.]
water: 0.13 (0°C) [Ref.]
water: 0.28 (10°C) [Ref.]
water: 0.559 (25°C) [Ref.]
water: 0.69 (50°C) [Ref.]
water: 0.89 (75°C) [Ref.]
water: 1.67 (100°C) [Ref.]

Multicomponent solubility (in wt%):

water 99.658%, aluminum fluoride 0.303%, sodium fluoride 0.039%, 25 °C, separating phase: 4AlF3 * 11NaF [Ref.]
water 99.823%, aluminum fluoride 0.059%, sodium fluoride 0.118%, 25 °C, separating phase: 4AlF3 * 11NaF [Ref.]
water 98.719%, aluminum fluoride 0.001%, sodium fluoride 1.28%, 25 °C, separating phase: 4AlF3 * 11NaF [Ref.]
water 98.84%, aluminum fluoride 0.39%, hydrogen fluoride 0.77%, 25 °C, separating phase: AlF3 * H2O [Ref.]
water 72.65%, aluminum fluoride 9.58%, hydrogen fluoride 17.77%, 25 °C, separating phase: AlF3 * H2O [Ref.]
water 54.02%, aluminum fluoride 19.68%, hydrogen fluoride 26.3%, 25 °C, separating phase: AlF3 * 3HF * 6H2O [Ref.]
water 55.51%, aluminum fluoride 13.42%, hydrogen fluoride 31.07%, 25 °C, separating phase: AlF3 * 3HF * 6H2O [Ref.]
water 44.91%, aluminum fluoride 16.08%, hydrogen fluoride 39.01%, 25 °C, separating phase: AlF3 * 3HF * 3H2O [Ref.]
water 33.74%, aluminum fluoride 3.53%, hydrogen fluoride 62.73%, 25 °C, separating phase: AlF3 * 3HF * 3H2O [Ref.]

Density:

3.07 (20°C, g/cm3)

Vapour pressure (Torr):

1 (956°C)
10 (1043°C)
100 (1146°C)

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

-1510 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-1431 (s)

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

66.48 (s)

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

75.1 (s)

ΔHsublimation (kJ/mol):

272

LD50 (mg/kg):

103 (mice, oral)

References:

  1. Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 9
  2. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.13
  3. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 133
  4. Milne G.W.A. Gardner's Commercially Important Chemicals. - Wiley-Interscience, 2005. - pp. 21
  5. Perry D.L. Handbook of Inorganic Compounds. - 2nd ed. - CRC Press, 2011. - pp. 6
  6. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 89-90
  7. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 223-224 [Russian]
  8. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 94-95 [Russian]
  9. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 44-45 [Russian]
  10. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 53 [Russian]
  11. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 852 [Russian]
  12. Химическая технология неорганических веществ. - Кн.1, под ред. Ахметова Т.Г. - М.: Высшая школа, 2002. - pp. 302-304 [Russian]
  13. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 121-122 [Russian]
  14. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 30 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru