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Properties of substance:

tin(II) oxide

Group of substances:

inorganic

Physical appearance:

black tetragonal crystals

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

OSn

Structural formula as text:

SnO

Molar/atomic mass: 134.69

Melting point (°C):

1040

Boiling point (°C):

1425

Solubility (g/100 g of solvent):

methanol: insoluble [Ref.]
water: insoluble [Ref.]

Density:

6.446 (0°C, g/cm3)

Vapour pressure (Torr):

1 (804°C)
10 (962°C)
100 (1174°C)
760 (1430°C)

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

    -286 (s)

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

    -256.9 (s)

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

    56.5 (s)

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

    44.4 (s)

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

    21 (g)

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

    232.01 (g)

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

    31.76 (g)

    LD50 (mg/kg):

    215 (, )

    References:

    1. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 630 [Russian]
    2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 89 [Russian]
    3. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 409 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru