Main page (Russian) Search in database (English)

Properties of substance:

lithium tetrahydroaluminate

Synonyms:

lithium aluminum hydride
lithium aluminium hydride

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

H4AlLi

Structural formula as text:

LiAlH4

Molar/atomic mass: 37.95

Decomposition temperature (°C):

120

CAS №: 16853-85-3

Solubility (g/100 g of solvent):

1,4-dioxane: 0.1 (25°C) [Ref.]
benzene: insoluble [Ref.]
chloroform: insoluble [Ref.]
dibutyl ether: 2 (25°C) [Ref.]
diethyl ether: 27 (0°C) [Ref.]
diethyl ether: 39.5 (25°C) [Ref.]
diethylene glycol diethyl ether: 3 (0°C) [Ref.]
diethylene glycol diethyl ether: 4 (25°C) [Ref.]
diethylene glycol diethyl ether: 6 (100°C) [Ref.]
diglyme: 1 (0°C) [Ref.]
diglyme: 5 (25°C) [Ref.]
diglyme: 8 (75°C) [Ref.]
methylal: 5.6 (25°C) [Ref.]
monoglyme: 5 (0°C) [Ref.]
monoglyme: 7 (25°C) [Ref.]
monoglyme: 12 (75°C) [Ref.]
monoglyme: 13 (100°C) [Ref.]
tetraglyme: 3 (0°C) [Ref.]
tetraglyme: 6 (25°C) [Ref.]
tetraglyme: 8 (50°C) [Ref.]
tetraglyme: 6 (100°C) [Ref.]
tetrahydrofuran: 11.5 (25°C) [Ref.]
toluene: insoluble [Ref.]
triglyme: 2 (0°C) [Ref.]
triglyme: 3 (25°C) [Ref.]
triglyme: 8 (100°C) [Ref.]
water: reaction [Ref.]

Numerical data:

Year of discovery: 1947

Density:

0.917 (20°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1]
    4LiH + AlCl3 → LiAlH4 + 3LiCl

Reactions:

  1. [Ref.1]
    2LiAlH4 → 2LiH + 2Al + 3H2

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

-117 (s)

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

-48.4 (s)

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

87.9 (s)

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

86.4 (s)

References:

  1. Bretherick's Handbook of Reactive Chemical Hazards. - 6 ed., Vol. 1. - Butterworth-Heinemann, 1999. - pp. 42-46
  2. Reedijk J., Poeppelmeier K. Comprehensive Inorganic Chemistry II. - Vol. 1. - Elsevier, 2013. - pp. 1258-1260
  3. Вейганд-Хильгетаг Методы эксперимента в органической химии. - М., 1968. - pp. 61 [Russian]
  4. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 148-149 [Russian]
  5. Жигач А.Ф., Стасиневич Д.С. Химия гидридов. - Л.: Химия, 1969. - pp. 510-518 [Russian]
  6. Мичович В., Михайлович М. Алюмогидрид лития и его применение в органической химии. - М.: ИИЛ, 1957 [Russian]
  7. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 49 [Russian]
  8. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 76 [Russian]
  9. Репинская И.Б., Шварцберг М.С. Избранные методы синтеза органических соединений. - Новосибирск, 2000. - pp. 119 [Russian]
  10. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 18-19 [Russian]
  11. Успехи химии. - 1968. - Т.37, №2. - pp. 221-227 [Russian]
  12. Хайош А. Комплексные гидриды в органической химии. - Л.: Химия, 1971. - pp. 95-99 [Russian]

    Your requests if no data into database




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru