Powdered osmium is oxidized in air at room temperature to form highly toxic
osmium tetroxide. Found naturally with iridium, paladium, rhodium and platinum.
- | 76 | Density | g/mL | 22 | .4 | ||||
u | 190 | .2 | K | 3300 | |||||
A | 1 | .26 | K | 5285 | |||||
A | 1 | .92 | kJ/mol | 746 | |||||
V | 8 | .7 | kJ/mol | 31 | .8 | ||||
- | 2 | .2 | J/gK | 0 | .13 | ||||
162
1.9 msec a,6.780 MeV W-158 161.98378 |
163
a/EC,9.400 W-159/Re-163 162.98207 |
164
41 msec a/EC,6.478 W-160/Re-164 163.97788 |
165
73 msec a/EC,6.320 W-161/Re-165 164.97648 |
166
194 msec a/EC,6.131 W-162/Re-166 165.97252 |
167
0.83 sec a/EC,5.980 W-163/Re-167 166.97133 |
168
2.2 sec a/EC,5.700 W-164/Re-168 167.96775 |
169
3.4 sec a/EC,7.680 W-165/Re-169 168.96707 |
170
7.3 sec a/EC,5.000 W-166/Re-170 169.96356 |
171
8.0 sec a/EC,7.100 W-167/Re-171 170.96307 |
172
19.2 sec a/EC,4.500 W-168/Re-172 171.96007 |
173
16 sec a/EC,6.300 W-169/Re-173 172.95974 |
174
44 sec a/EC,3.700 W-170/Re-174 173.95716 |
175
1.4 min EC,5.300 MeV Re-175 174.95705 |
176
3.6 min EC,3.200 MeV Re-176 175.95496 |
177
2.8 min EC,4.500 MeV Re-177 176.95512 |
178
5.0 min EC,2.300 MeV Re-178 177.95335 |
179
6.5 min EC,3.680 MeV Re-179 178.95393 |
180
21.5 min EC,1.470 MeV Re-180 179.95235 |
181
105 min EC,2.930 MeV Re-181 180.95321 |
182
22.10 hr EC,2.800 MeV Re-182 181.95218 |
183
13.0 hr EC,2.130 MeV Re-183 182.95310 |
184
0.020% 5.6E13 yr ,1.671 MeV 183.95249 |
185
93.6 da EC,1.013 MeV Re-185 184.95404 |
186
1.58% 2.0E+15 yr a,2.822 MeV W-182 185.95383 |
187
1.6% Stable 186.95574 |
188
13.3% Stable 187.95583 |
189
16.1% Stable 188.95814 |
190
26.4% Stable 189.95844 |
191
15.4 da B-,2.045 MeV Ir-191 190.96092 |
192
41.0% B-Stable Ir-192 191.96147 |
193
30.5 hr B-,1.140 MeV Ir-193 192.96414 |
194
6.0 yr B-,7.100 MeV Ir-194 193.96517 |
195
6.5 min B-,2.000 MeV Ir-195 194.96811 |
196
34.9 min B-,1.160 MeV Ir-196 195.96961 |
MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass |