Main page (Russian) Search in database (English)

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)

Half-life:

17882Pb = 230 μs (α (about 100%))
17982Pb = 3.9 ms (α (100%))
18082Pb = 4.2 ms (α (100%))
18182Pb = 39.0 ms ()
18282Pb = 55 ms ()
18382Pb = 535 ms ()
18482Pb = 490 ms (α (80%))
18582Pb = 6.3 s (α (34%))
185m82Pb = 4.07 s (α (50%))
18682Pb = 4.82 s (α (40%))
18782Pb = 15.2 s ()
187m82Pb = 18.3 s ()
18882Pb = 25.1 s ()
188m82Pb = 1.15 μs (internal transition (100%))
18982Pb = 50.5 μs (β+ (about 100%), α)
189m82Pb = 39 s (β+ (about 100%), α)
19082Pb = 71 s ()
19182Pb = 1.33 min (β+ (about 100%), α (0.51%))
19282Pb = 3.5 min (β+ (about 100%), α (0.0059%))
193m82Pb = 5.8 min (β+ (100%))
19482Pb = 10.7 min (β+ (about 100%), α)
19582Pb = 15 min ()
19682Pb = 37 min (β+ (about 100%), α)
19782Pb = 8.1 min (β+ (100%))
19882Pb = 2.4 h (β+ (100%))
19982Pb = 90 min (β+ (100%))
20082Pb = 21.5 h (electron capture (100%))
20182Pb = 9.33 h (β+ (100%))
20282Pb = 52 500 y (electron capture (100%))
20382Pb = 51.92 h (electron capture (100%))
20482Pb = stable (mass excess -25109,7 keV (isotopic abundance 1,4%))
204m82Pb = 67.2 min (internal transition (100%))
20582Pb = 15 300 000 y (electron capture (100%))
205m82Pb = 5.54 ms (internal transition (100%))
205n82Pb = 217 ns (internal transition (100%))
20682Pb = stable ( (isotopic abundance 24,1%))
206m82Pb = 125 μs (internal transition (100%))
206n82Pb = 202 ns (internal transition (100%))
20782Pb = stable ( (isotopic abundance 22,1%))
207m82Pb = 806 ms (internal transition (100%))
20882Pb = stable ( (isotopic abundance 52,4%))
208m82Pb = 500 ns (internal transition (100%))
20982Pb = 3.234 h (β- (100%))
21082Pb = 22.20 y (β- (100%), α (0.000 001 9%))
21182Pb = 36.164 min (β- (100%))
21282Pb = 10.64 h (β- (100%))
21382Pb = 10.2 min (β- (100%))
21482Pb = 27.06 min (β- (100%))
21582Pb = 2.34 min (β- (100%))
21682Pb = 1.65 min (β- (100%))
21782Pb = 20 s (β- (100%))
21882Pb = 15 s (β- (100%))

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]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru