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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 (Sb
3+
crystal)
Hardness on the Mohs’ scale: 3
Density:
6.69 (20°C, g/cm
3
)
6.55 (631°C, d
4
)
6.49 (640°C, g/cm
3
)
6.45 (700°C, g/cm
3
)
6.38 (800°C, g/cm
3
)
6.29 (970°C, g/cm
3
)
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 Δ
f
H
0
(298.15 K, kJ/mol):
0 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
0 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
45.69 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
25.2 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
20.1
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
124.4
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
268 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
180.2 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
20.8 (g)
LD
50
(mg/kg):
112 (mice, intraperitoneal)
References:
Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 43-44
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 276-277
Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 515-517 [Russian]
Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 51 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 100 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 601 [Russian]
Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 475-477 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru