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Properties of substance:

indium

Group of substances:

inorganic

Physical appearance:

tetragonal metal

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

In

Structural formula as text:

In

Molar/atomic mass: 114.82

Melting point (°C):

156.6

Boiling point (°C):

2109

Solubility (g/100 g of solvent):

mercury: 133.5 (25°C) [Ref.]
water: insoluble [Ref.]

Properties of solutions:

10% (wt.), solvent - mercury
  Density (g/cm3) = 12.533 (25°)
25% (wt.), solvent - mercury
  Density (g/cm3) = 11.224 (25°)
50% (wt.), solvent - mercury
  Density (g/cm3) = 9.4698 (25°)

Numerical data:

Year of discovery: 1863
Superconducting temperature (K): 3.405

Density:

7.362 (20°C, g/cm3)
7.023 (157°C, g/cm3)
5.763 (2109°C, g/cm3)

Half-life:

10049In = 5.83 s (β+ (100%), β+p (1.64%))
10149In = 15.1 s (β+ (100%))
10249In = 23.3 s (β+ (100%), β+p (0.0093%))
10349In = 60 s (β+ (100%))
103m49In = 34 s (β+ (67%), internal transition (33%))
10449In = 1.80 min (β+ (100%))
104m49In = 15.7 s (β+ (20%), internal transition (80%))
10549In = 5.07 min (β+ (100%))
105m49In = 48 s ()
10649In = 6.2 min (β+ (100%))
106m49In = 5.2 min (β+ (100%))
10749In = 32.4 min (β+ (100%))
107m49In = 50.4 s (internal transition (100%))
10849In = 58.0 min (β+ (100%))
108m49In = 39.6 min (β+ (100%))
10949In = 4.167 h (β+ (100%))
109m49In = 1.34 min (internal transition (100%))
109n49In = 209 ms (internal transition (100%))
11049In = 4.92 h (β+ (100%))
110m49In = 69.1 min (β+ (100%))
11149In = 2.8063 d (electron capture (100%))
111m49In = 7.7 min (internal transition (100%))
11249In = 14.88 min (β+ (57.4%), β- (42.6%))
112m49In = 20.67 min (internal transition (100%))
112n49In = 690 ns (internal transition (100%))
112p49In = 2.81 μs (internal transition (100%))
11349In = stable ( (isotopic abundance 4,29%))
113m49In = 1.6579 h (internal transition (100%))
11449In = 71.9 s (β- (99.5%), β+ (0.50%))
114m49In = 49.51 d (internal transition (96.75%), β+ (3.25%))
114n49In = 43.1 ms (internal transition (100%))
114p49In = 4.3 ns (internal transition (100%))
11549In = 4.41 · 1014 y (β- (100%) (isotopic abundance 95,71%))
115m49In = 4.486 h (internal transition (95.0%), β- (5.0%))
11649In = 14.10 s (β- (about 100%), electron capture (0.0237%))
116m49In = 54.29 min (β- (100%))
116n49In = 2.18 s (internal transition (100%))
11749In = 43.2 min (β- (100%))
117m49In = 116.2 min (β- (52.9%), internal transition (47.1%))
11849In = 5.0 s (β- (100%))
118m49In = 4.364 min (β- (100%))
118n49In = 8.5 s (internal transition (98.6%), β- (1.4%))
11949In = 2.4 min (β- (100%))
119m49In = 18.0 min (β- (95.6%), internal transition (4.4%))
119n49In = 130 ns (internal transition (100%))
119p49In = 240 ns (internal transition (100%))
12049In = 3.08 s (β- (100%))
120m49In = 46.2 s (β- (100%))
120n49In = 47.3 s (β- (100%))
12149In = 23.1 s (β- (100%))
121m49In = 3.88 min (β- (98.8%), internal transition (1.2%))
121n49In = 17 μs (internal transition (100%))
12249In = 1.5 s (β- (100%))
122m49In = 10.3 s (β- (100%))
122n49In = 10.8 s (β- (100%))
12349In = 6.17 s (β- (100%))
123m49In = 47.4 s (β- (100%))
123n49In = 1.4 μs (internal transition (100%))
12449In = 3.12 s (β- (100%))
124m49In = 3.7 s (β- (about 100%))
12549In = 2.36 s (β- (100%))
125m49In = 12.2 s (β- (100%))
125n49In = 9.4 μs (internal transition (100%))
125p49In = 5.0 ms (internal transition (100%))
12649In = 1.53 s (β- (100%))
126m49In = 1.64 s (β- (100%))
126n49In = 22 μs (internal transition (100%))
12749In = 1.09 s (β- (100%), β-n)
127m49In = 3.67 s (β- (100%), β-n (0.69%))
127n49In = 1.04 s (β- (100%), β-n)
127p49In = 9 μs (internal transition (100%))
12849In = 24.99 min (β- (93.1%), β- (6.9%))
128m49In = 845 ns (internal transition (100%))
128n49In = 175 ns (internal transition (100%))
12949In = 570 ms (β- (100%), β-n (0.23%))
129m49In = 1.23 s (β- (100%), β-n (3.6%), internal transition)
129n49In = 11.2 μs (internal transition (100%))
129p49In = 670 ms (β- (100%))
129q49In = 110 ms (internal transition (about 100%))
13049In = 284 ms (β- (100%), β-n (0.93%))
130m49In = 540 ms (β- (100%), β-n (1.65%))
130q49In = 5.3 μs (internal transition (100%))
13149In = 261 ms (β- (100%), β-n (2.2%))
131m49In = 350 ms (β- (about 100%), β-n)
131n49In = 320 ms (β- (> 99%), β-n (0.028%), internal transition)
131p49In = 669 ns (internal transition (100%))
13249In = 198 ms (β- (100%), β-n (6.3%))
13349In = 165 ms (β- (100%), β-n (85%))
13449In = 140 ms (β- (100%), β-n (65%))
13549In = 101 ms ()
13649In = 86 ms (β- (100%), β-n )
13749In = 70 ms (β- (100%), β-n)
9749In = 50 ms (β+ (100%))
9849In = 37 ms (β+ (100%), β+p (5.6%))
98m49In = 1.01 s (β+ (100%), β+p (19%))
9949In = 3.1 s (β+ (100%), β+p (0.9%))

Vapour pressure (Torr):

0.01 (912°C)
0.1 (1042°C)
1 (1205°C)
10 (1414°C)
100 (1688°C)

Electrode potential:

In3+ + e- → In2+, E = -0.45 V (water, 25°C)
In3+ + 3e- → In, E = -0.338 V (water, 25°C)
In+ + e- → In, E = -0.18 V (water, 25°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)):

57.82 (s)

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

26.74 (s)

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

3.26

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

227.6

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

238 (g)

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

173.7 (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. 679
  2. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 215 [Russian]
  3. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 50 [Russian]
  4. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 59-62 [Russian]
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 64 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 595 [Russian]
  7. Успехи химии. - 1997. - Т.66, №2. - pp. 112 [Russian]
  8. Федоров П.И., Акчурин Р.Х. Индий. - М.: Наука, 2000. - pp. 9-19 [Russian]
  9. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 226-227 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru