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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

Half-life:

10451Sb = 470 ms ()
10551Sb = 1.12 s ()
10651Sb = 600 ms (β+ (100%))
106m51Sb = 226 ns (internal transition (100%))
10751Sb = 4.0 s (β+ (100%))
10851Sb = 7.4 s (β+ (100%))
10951Sb = 17.0 s (β+ (100%))
11051Sb = 23.6 s (β+ (100%))
11151Sb = 75 s (β+ (100%))
11251Sb = 53.5 s (β+ (100%))
112m51Sb = 536 ns (internal transition (100%))
11351Sb = 6.67 min (β+ (100%))
11451Sb = 3.49 min (β+ (100%))
114m51Sb = 219 μs (internal transition (100%))
11551Sb = 32.1 min (β+ (100%))
115m51Sb = 159 ns (internal transition (100%))
11651Sb = 15.8 min (β+ (100%))
116m51Sb = 192 ns (internal transition (100%))
116n51Sb = 60.3 min (β+ (100%))
11751Sb = 2.80 h (β+ (100%))
117m51Sb = 355 μs (internal transition (100%))
117n51Sb = 290 ns (internal transition (100%))
11851Sb = 3.6 min (β+ (100%))
118m51Sb = 20.6 μs (internal transition (100%))
118n51Sb = 5.00 h (β+ (100%))
11951Sb = 38.19 h (electron capture (100%))
119m51Sb = 130 ns (internal transition (100%))
119n51Sb = 850 ms (internal transition (100%))
12051Sb = 15.89 min (β+ (100%))
120m51Sb = 5.76 d (β+ (100%))
120n51Sb = 246 ns (internal transition (100%))
120p51Sb = 400 ns (internal transition (100%))
12151Sb = stable ( (isotopic abundance 57,21%))
121m51Sb = 179 μs (internal transition (100%))
12251Sb = 2.7238 d (β- (97.59%), β+ (2.41%))
122m51Sb = 1.86 μs (internal transition (100%))
122n51Sb = 530 μs (internal transition (100%))
122p51Sb = 4.191 min (internal transition (100%))
12351Sb = stable ( (isotopic abundance 42,79%))
123m51Sb = 214 ns (internal transition (100%))
123n51Sb = 65 μs (internal transition (100%))
12451Sb = 60.20 d (β- (100%))
124m51Sb = 93 s (internal transition (75%), β- (25%))
124n51Sb = 20.2 min (internal transition (100%))
124p51Sb = 3.2 μs (internal transition (100%))
12551Sb = 2.7586 y (β- (100%))
125m51Sb = 4.1 μs (internal transition (100%))
125n51Sb = 28.0 μs (internal transition (100%))
125q51Sb = 272 ns (internal transition (100%))
12651Sb = 12.35 d (β- (100%))
126m51Sb = 19.15 min (β- (86%), internal transition (14%))
126n51Sb = 11 s (internal transition (100%))
126p51Sb = 553 ns (internal transition (100%))
12751Sb = 3.85 d (β- (100%))
127m51Sb = 11 μs (internal transition (100%))
127n51Sb = 234 ns (internal transition (100%))
12851Sb = 9.05 h (β- (100%))
128n51Sb = 10.41 min (β- (96.4%), internal transition (3.6%))
12951Sb = 4.366 h (β- (100%))
129m51Sb = 17.7 min (β- (85%), internal transition (15%))
129n51Sb = 2.2 μs (internal transition (100%))
129p51Sb = 1.1 μs (internal transition (100%))
13051Sb = 39.5 min (β- (100%))
130m51Sb = 6.3 min (β- (100%))
130n51Sb = 800 ns (internal transition (100%))
130p51Sb = 1.8 μs (internal transition (100%))
13151Sb = 23.03 min (β- (100%))
131m51Sb = 91 μs (internal transition (100%))
131n51Sb = 4.3 μs (internal transition (100%))
131p51Sb = 1.1 μs (internal transition (100%))
13251Sb = 2.79 min (β- (100%))
132m51Sb = 4.10 min (β- (100%))
132n51Sb = 102 ns (internal transition (100%))
13351Sb = 2.34 min (β- (100%))
133m51Sb = 16.54 μs (internal transition (100%))
13451Sb = 780 ms (β- (100%))
134m51Sb = 10.07 s (internal transition (100%))
13551Sb = 1.679 s (β- (100%), β-n (22%))
13651Sb = 923 ms (β- (100%), β-n (16.3%))
136m51Sb = 570 ns (internal transition (100%))
13751Sb = 484 ms (β- (100%), β-n (49%))
13851Sb = 348 ms (β- (100%), β-n (72%))
13951Sb = 93 ms (β- (100%), β-n (90%))
140m51Sb = 41 μs (internal transition (100%))

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