Main page (Russian)
Search in database (English)
Properties of substance:
lutetium
Group of substances:
inorganic
Physical appearance:
hexagonal metal
Empirical formula (Hill's system for organic substances):
Lu
Structural formula as text:
Lu
Molar/atomic mass: 174.967
Melting point (°C):
1660
Boiling point (°C):
3410
Numerical data:
Year of discovery: 1907
Superconducting temperature (K): 0.1
Density:
9.849 (20°C, g/cm
3
)
Half-life:
150
71
Lu = 45 ms ()
150m
71
Lu = 40 μs (p (100%))
151
71
Lu = 78.4 ms ()
151m
71
Lu = 16.5 μs (p (100%))
152
71
Lu = 650 ms (β
+
(100%), β
+
p (15%))
153
71
Lu = 900 ms ()
153p
71
Lu = 15 μs (internal transition (100%))
154m
71
Lu = 1.12 s (β
+
(100%))
154n
71
Lu = 35 μs (internal transition (100%))
155
71
Lu = 68.6 ms (α (90%))
155m
71
Lu = 138 ms (α (76%))
155n
71
Lu = 2.69 ms (α (about 100%))
156
71
Lu = 494 ms ()
156m
71
Lu = 198 ms (α (94%))
157
71
Lu = 6.8 s ()
157m
71
Lu = 4.79 s (α (6%))
158
71
Lu = 10.6 s (β
+
(99.09%), α (0.91%))
159
71
Lu = 12.1 s (β
+
(about 100%))
160
71
Lu = 36.1 s (β
+
(about 100%), α (< 0.0001%))
160m
71
Lu = 40 s (β
+
(about 100%))
161
71
Lu = 77 s (β
+
(100%))
161m
71
Lu = 7.3 ms (internal transition (100%))
162
71
Lu = 1.37 min (β
+
(100%))
162m
71
Lu = 1.5 min (β
+
(about 100%))
162n
71
Lu = 1.9 min (β
+
(about 100%))
163
71
Lu = 3.97 min (β
+
(100%))
164
71
Lu = 3.14 min (β
+
(100%))
165
71
Lu = 10.74 min (β
+
(100%))
166
71
Lu = 2.65 min (β
+
(100%))
166m
71
Lu = 1.41 min (β
+
(58%), internal transition (42%))
166n
71
Lu = 2.12 min (β
+
(> 80%), internal transition (< 20%))
167
71
Lu = 51.5 min (β
+
(100%))
168
71
Lu = 5.5 min (β
+
(100%))
168m
71
Lu = 6.7 min (β
+
(> 99.6%), internal transition (< 0.4%))
169
71
Lu = 34.06 h (β
+
(100%))
169m
71
Lu = 160 s (internal transition (100%))
170
71
Lu = 2.012 d (β
+
(100%))
170m
71
Lu = 670 ms (internal transition (100%))
171
71
Lu = 8.24 d (β
+
(100%))
171m
71
Lu = 79 s (internal transition (100%))
172
71
Lu = 6.70 d (β
+
(100%))
172m
71
Lu = 3.7 min (internal transition (100%))
172n
71
Lu = 332 ns (internal transition (100%))
172p
71
Lu = 440 μs (internal transition (100%))
172q
71
Lu = 150 ns (internal transition (100%))
173
71
Lu = 1.37 y (electron capture (100%))
173m
71
Lu = 74.2 μs (internal transition (100%))
174
71
Lu = 3.31 y (β
+
(100%))
174m
71
Lu = 142 d (internal transition (99.38%), electron capture (0.62%))
174n
71
Lu = 395 ns (internal transition (100%))
174p
71
Lu = 145 ns (internal transition (100%))
174q
71
Lu = 194 ns (internal transition (100%))
174r
71
Lu = 242 ns (internal transition (100%))
175
71
Lu = stable ( (isotopic abundance 97,401%))
175m
71
Lu = 1.49 μs (internal transition (100%))
175n
71
Lu = 984 μs (internal transition (100%))
176
71
Lu = 36 840 000 000 y (β
-
(100%) (isotopic abundance 2,599%))
176m
71
Lu = 3.664 h (β
-
(about 100%), electron capture (0.095%))
176n
71
Lu = 312 ns (internal transition (100%))
176p
71
Lu = 40 μs (internal transition (100%))
177
71
Lu = 6.6457 d (β
-
(100%))
177m
71
Lu = 130 ns (internal transition (100%))
177n
71
Lu = 155 μs (internal transition (100%))
177p
71
Lu = 160.44 d (β
-
(78.6%), internal transition (21.4%))
177q
71
Lu = 625 ns (internal transition (100%))
177r
71
Lu = 6 μs (internal transition (100%))
178
71
Lu = 28.4 min (β
-
(100%))
178m
71
Lu = 23.1 min (β
-
(100%))
179
71
Lu = 4.59 h (β
-
(100%))
179m
71
Lu = 3.1 ms (internal transition (100%))
180
71
Lu = 5.7 min (β
-
(100%))
180m
71
Lu = 1 s ()
181
71
Lu = 3.5 min (β
-
(100%))
182
71
Lu = 2.0 min (β
-
(100%))
183
71
Lu = 58 s (β
-
(100%))
184
71
Lu = 20 s (β
-
(100%))
Vapour pressure (Torr):
0.01 (451°C)
0.1 (1287°C)
1 (1453°C)
10 (1649°C)
100 (1938°C)
Electrode potential:
Lu
3+
+ 3e
-
→ Lu, E = -2.255 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)):
49.4 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
27 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
18.8
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
322
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
428 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
184.7 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
20.9 (g)
References:
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 77 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 619 [Russian]
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru
Search in database (English)