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Properties of substance:

antimony

Group of substances:

inorganic

Physical appearance:

trigonal metal

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

Sb

Structural formula as text:

Sb

Molar/atomic mass: 121.75

Melting point (°C):

630.5

Boiling point (°C):

1634

Solubility (g/100 g of solvent):

ammonia liquid : insoluble [Ref.]
antimony trichloride: 0.096 (270°C) [Ref.]
hydrazine: insoluble [Ref.]
mercury: 0.0002 (20°C) [Ref.]
mercury: 0.5 (300°C) [Ref.]
water: insoluble [Ref.]

Numerical data:

Ionic radius (pm): 90 (Sb3+ crystal)
Hardness on the Mohs’ scale: 3

Density:

6.69 (20°C, g/cm3)
6.55 (631°C, d4)
6.49 (640°C, g/cm3)
6.45 (700°C, g/cm3)
6.38 (800°C, g/cm3)
6.29 (970°C, g/cm3)

Reactions:

  1. [Ref.1]
    2Sb + 3S → Sb2S3
  2. [Ref.1aster]
    2Sb + 3I2 → 2SbI3

Vapour pressure (Torr):

0.01 (533°C)
0.1 (600°C)
1 (731°C)
10 (960°C)
100 (1289°C)

Viscosity (mPa·s):

1.5 (650°C)
1.26 (700°C)
1.05 (850°C)

Surface tension (mN/m):

368 (750°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)):

45.69 (s)

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

25.2 (s)

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

20.1

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

124.4

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

268 (g)

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

180.2 (g)

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

20.8 (g)

LD50 (mg/kg):

112 (mice, intraperitoneal)

References:

  1. Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 43-44
  2. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 276-277
  3. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 515-517 [Russian]
  4. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 51 [Russian]
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 100 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 601 [Russian]
  7. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 475-477 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru