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Properties of substance:

aluminum chloride hexahydrate

Group of substances:

inorganic

Physical appearance:

colorless crystals

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

H12AlCl3O6

Structural formula as text:

AlCl3 * 6H2O

Molar/atomic mass: 241.43

Melting point (°C):

100

Decomposition temperature (°C):

100

CAS №: 7784-13-6

Solubility (g/100 g of solvent):

water: 124.7 (25°C) [Ref.]

Properties of solutions:

55,5% (wt.), solvent - water
  Density (g/cm3) = 1.35 (25°)

Hygroscopic:

very hygroscopic

Density:

2.398 (20°C, g/cm3)

Reactions:

  1. Yeild 85%. [Ref.1aster]
    AlCl3 * 6H2O + 3CH3COONa → (CH3COO)2AlOH + 3NaCl + CH3COOH + 5H2O

Dissociation:

pKa (1) = 4.95 (25°C, water)

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

-2691.6 (s) [Ref.]

Standard molar entropy S (298 K, J/(mol·K))

318 (s) [Ref.]

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

296.2 (s) [Ref.]

LD50 (mg/kg):

3311 (rats, oral)
728 (rats, intraperitoneal)
1990 (mice, oral)
940 (mice, intraperitoneal)

References:

  1. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 132
  2. Patnaik P. Handbook of inorganic chemicals. - McGraw-Hill, 2003. - pp. 7-8
  3. Perry D.L. Handbook of Inorganic Compounds. - 2nd ed. - CRC Press, 2011. - pp. 5
  4. Волков А.И., Жарский И.М. Большой химический справочник. - Минск: Современная школа, 2005. - pp. 115 [Russian]
  5. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 217 [Russian]
  6. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 20-21 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru