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Properties of substance:

lutetium

Group of substances:

inorganic

Physical appearance:

hexagonal metal

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

Lu

Structural formula as text:

Lu

Molar/atomic mass: 174.967

Melting point (°C):

1660

Boiling point (°C):

3410

Numerical data:

Year of discovery: 1907
Superconducting temperature (K): 0.1

Density:

9.849 (20°C, g/cm3)

Vapour pressure (Torr):

0.01 (451°C)
0.1 (1287°C)
1 (1453°C)
10 (1649°C)
100 (1938°C)

    Electrode potential:

    Lu3+ + 3e- → Lu, E = -2.255 V (water, 25°C)

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

    0 (s)

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

    0 (s)

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

    49.4 (s)

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

    27 (s)

    Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

    18.8

    Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

    322

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

    428 (g)

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

    184.7 (g)

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

    20.9 (g)

    References:

    1. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 77 [Russian]
    2. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 619 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru