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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/cm
3
) = 12.533 (25°)
25% (wt.), solvent - mercury
Density (g/cm
3
) = 11.224 (25°)
50% (wt.), solvent - mercury
Density (g/cm
3
) = 9.4698 (25°)
Numerical data:
Year of discovery: 1863
Superconducting temperature (K): 3.405
Density:
7.362 (20°C, g/cm
3
)
7.023 (157°C, g/cm
3
)
5.763 (2109°C, g/cm
3
)
Half-life:
100
49
In = 5.83 s (β
+
(100%), β
+
p (1.64%))
101
49
In = 15.1 s (β
+
(100%))
102
49
In = 23.3 s (β
+
(100%), β
+
p (0.0093%))
103
49
In = 60 s (β
+
(100%))
103m
49
In = 34 s (β
+
(67%), internal transition (33%))
104
49
In = 1.80 min (β
+
(100%))
104m
49
In = 15.7 s (β
+
(20%), internal transition (80%))
105
49
In = 5.07 min (β
+
(100%))
105m
49
In = 48 s ()
106
49
In = 6.2 min (β
+
(100%))
106m
49
In = 5.2 min (β
+
(100%))
107
49
In = 32.4 min (β
+
(100%))
107m
49
In = 50.4 s (internal transition (100%))
108
49
In = 58.0 min (β
+
(100%))
108m
49
In = 39.6 min (β
+
(100%))
109
49
In = 4.167 h (β
+
(100%))
109m
49
In = 1.34 min (internal transition (100%))
109n
49
In = 209 ms (internal transition (100%))
110
49
In = 4.92 h (β
+
(100%))
110m
49
In = 69.1 min (β
+
(100%))
111
49
In = 2.8063 d (electron capture (100%))
111m
49
In = 7.7 min (internal transition (100%))
112
49
In = 14.88 min (β
+
(57.4%), β
-
(42.6%))
112m
49
In = 20.67 min (internal transition (100%))
112n
49
In = 690 ns (internal transition (100%))
112p
49
In = 2.81 μs (internal transition (100%))
113
49
In = stable ( (isotopic abundance 4,29%))
113m
49
In = 1.6579 h (internal transition (100%))
114
49
In = 71.9 s (β
-
(99.5%), β
+
(0.50%))
114m
49
In = 49.51 d (internal transition (96.75%), β
+
(3.25%))
114n
49
In = 43.1 ms (internal transition (100%))
114p
49
In = 4.3 ns (internal transition (100%))
115
49
In = 4.41 · 10
14
y (β
-
(100%) (isotopic abundance 95,71%))
115m
49
In = 4.486 h (internal transition (95.0%), β
-
(5.0%))
116
49
In = 14.10 s (β
-
(about 100%), electron capture (0.0237%))
116m
49
In = 54.29 min (β
-
(100%))
116n
49
In = 2.18 s (internal transition (100%))
117
49
In = 43.2 min (β
-
(100%))
117m
49
In = 116.2 min (β
-
(52.9%), internal transition (47.1%))
118
49
In = 5.0 s (β
-
(100%))
118m
49
In = 4.364 min (β
-
(100%))
118n
49
In = 8.5 s (internal transition (98.6%), β
-
(1.4%))
119
49
In = 2.4 min (β
-
(100%))
119m
49
In = 18.0 min (β
-
(95.6%), internal transition (4.4%))
119n
49
In = 130 ns (internal transition (100%))
119p
49
In = 240 ns (internal transition (100%))
120
49
In = 3.08 s (β
-
(100%))
120m
49
In = 46.2 s (β
-
(100%))
120n
49
In = 47.3 s (β
-
(100%))
121
49
In = 23.1 s (β
-
(100%))
121m
49
In = 3.88 min (β
-
(98.8%), internal transition (1.2%))
121n
49
In = 17 μs (internal transition (100%))
122
49
In = 1.5 s (β
-
(100%))
122m
49
In = 10.3 s (β
-
(100%))
122n
49
In = 10.8 s (β
-
(100%))
123
49
In = 6.17 s (β
-
(100%))
123m
49
In = 47.4 s (β
-
(100%))
123n
49
In = 1.4 μs (internal transition (100%))
124
49
In = 3.12 s (β
-
(100%))
124m
49
In = 3.7 s (β
-
(about 100%))
125
49
In = 2.36 s (β
-
(100%))
125m
49
In = 12.2 s (β
-
(100%))
125n
49
In = 9.4 μs (internal transition (100%))
125p
49
In = 5.0 ms (internal transition (100%))
126
49
In = 1.53 s (β
-
(100%))
126m
49
In = 1.64 s (β
-
(100%))
126n
49
In = 22 μs (internal transition (100%))
127
49
In = 1.09 s (β
-
(100%), β
-
n)
127m
49
In = 3.67 s (β
-
(100%), β
-
n (0.69%))
127n
49
In = 1.04 s (β
-
(100%), β
-
n)
127p
49
In = 9 μs (internal transition (100%))
128
49
In = 24.99 min (β
-
(93.1%), β
-
(6.9%))
128m
49
In = 845 ns (internal transition (100%))
128n
49
In = 175 ns (internal transition (100%))
129
49
In = 570 ms (β
-
(100%), β
-
n (0.23%))
129m
49
In = 1.23 s (β
-
(100%), β
-
n (3.6%), internal transition)
129n
49
In = 11.2 μs (internal transition (100%))
129p
49
In = 670 ms (β
-
(100%))
129q
49
In = 110 ms (internal transition (about 100%))
130
49
In = 284 ms (β
-
(100%), β
-
n (0.93%))
130m
49
In = 540 ms (β
-
(100%), β
-
n (1.65%))
130q
49
In = 5.3 μs (internal transition (100%))
131
49
In = 261 ms (β
-
(100%), β
-
n (2.2%))
131m
49
In = 350 ms (β
-
(about 100%), β
-
n)
131n
49
In = 320 ms (β
-
(> 99%), β
-
n (0.028%), internal transition)
131p
49
In = 669 ns (internal transition (100%))
132
49
In = 198 ms (β
-
(100%), β
-
n (6.3%))
133
49
In = 165 ms (β
-
(100%), β
-
n (85%))
134
49
In = 140 ms (β
-
(100%), β
-
n (65%))
135
49
In = 101 ms ()
136
49
In = 86 ms (β
-
(100%), β
-
n )
137
49
In = 70 ms (β
-
(100%), β
-
n)
97
49
In = 50 ms (β
+
(100%))
98
49
In = 37 ms (β
+
(100%), β
+
p (5.6%))
98m
49
In = 1.01 s (β
+
(100%), β
+
p (19%))
99
49
In = 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:
In
3+
+ e
-
→ In
2+
, E = -0.45 V (water, 25°C)
In
3+
+ 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 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)):
57.82 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
26.74 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
3.26
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
227.6
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
238 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
173.7 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
20.8 (g)
References:
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 679
Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 215 [Russian]
Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 50 [Russian]
Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 59-62 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 64 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 595 [Russian]
Успехи химии. - 1997. - Т.66, №2. - pp. 112 [Russian]
Федоров П.И., Акчурин Р.Х. Индий. - М.: Наука, 2000. - pp. 9-19 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 226-227 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru