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Properties of substance:

lithium peroxide

Group of substances:

inorganic

Physical appearance:

white hexagonal crystals

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

Li2O2

Structural formula as text:

LiOOLi

Molar/atomic mass: 45.88

Decomposition temperature (°C):

195

Solubility (g/100 g of solvent):

1-propanol: 0.53 (20°C) [Ref.]
2-propanol: 0.06 (20°C) [Ref.]
ethanol: 0.7 (20°C) [Ref.]
methanol: 2.69 (20°C) [Ref.]
water: reaction [Ref.]

Density:

2.26 (g/cm3)

Reactions of synthesis:

  1. Yeild 96%. [Ref.1aster, Ref.2]
    2LiOOH * H2O → Li2O2 + H2O2 + 2H2O

Reactions:

  1. Yeild 100%. [Ref.1aster, Ref.2]
    2Li2O2 → 2Li2O + O2

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

-634.3 (s)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-15
  2. Вольнов И.И. Перекисные соединения щелочных металлов. - М.: Наука, 1980. - pp. 116-126 [Russian]
  3. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 88 [Russian]
  4. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 227 [Russian]
  5. Остроушко Ю.И., Бучихин П.И. и др. Литий, его химия и технология. - М.: ИГУИАЭ, 1960. - pp. 45-46 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru