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Properties of substance:

lead

Group of substances:

inorganic

Physical appearance:

gray cubic metal

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

Pb

Structural formula as text:

Pb

Molar/atomic mass: 207.2

Melting point (°C):

327.4

Boiling point (°C):

1745

Solubility (g/100 g of solvent):

lead iodide: 0.01 (440°C) [Ref.]
lead iodide: 0.18 (700°C) [Ref.]
lead(II) chloride: 0.015 (600°C) [Ref.]
lead(II) chloride: 0.04 (700°C) [Ref.]
mercury: 1.32 (18°C) [Ref.]
water: 0.0000311 [Ref.]

Numerical data:

Superconducting temperature (K): 7.1999

Density:

11.336 (20°C, g/cm3)
10.686 (327.4°C, d4)

Vapour pressure (Torr):

1 (981°C)

Electrode potential:

Pb4+ + 2e- → Pb2+, E = 1.694 V (water, 25°C)
Pb4+ + e- → Pb3+, E = 1.8 V (water, 25°C)

Surface tension (mN/m):

445 (350°C)

Speed sound (m/s):

1020 (20°C, aggregative state - crystals, в стержне)

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)):

64.81 (s)

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

26.44 (s)

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

4.77

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

177.7

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

195.1 (g)

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

175.3 (g)

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

20.8 (g)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1364-1365
  2. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 350 [Russian]
  3. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 51 [Russian]
  4. Неорганические синтезы. - Сб. 1. - М.: ИИЛ, 1951. - pp. 10 [Russian]
  5. Полянский Н.Г. Свинец. - М.: Наука, 1986. - pp. 18-20 [Russian]
  6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 94 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 596 [Russian]
  8. Справочник химика. - 2 изд., Т.1. - Л.-М.: Химия, 1966. - pp. 595, 598 [Russian]
  9. Успехи химии. - 1997. - Т.66, №2. - pp. 112 [Russian]
  10. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 299-301 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru