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Properties of substance:

zinc oxide

Group of substances:

inorganic

Physical appearance:

white hexagonal crystals

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

OZn

Structural formula as text:

ZnO

Molar/atomic mass: 81.38

Melting point (°C):

1975

Solubility (g/100 g of solvent):

ammonia liquid : insoluble [Ref.]
ethanol: insoluble [Ref.]
water: 0.00016 (20°C) [Ref.]

Density:

5.7 (20°C, g/cm3)

Refractive index (nD):

2.008 (20°C)

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

-350.6 (s)

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

-320.7 (s)

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

43.64 (s)

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

40.25 (s)

References:

  1. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 194 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 113 [Russian]
  3. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 380 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru