Osmium borides are compounds of osmium and boron. Their most remarkable property is potentially high hardness. It is thought that a combination of high...
3 KB (332 words) - 05:37, 15 April 2024
Osmium compounds are compounds containing the element osmium (Os). Osmium forms compounds with oxidation states ranging from −2 to +8. The most common...
23 KB (2,391 words) - 02:15, 29 October 2024
Superhard material (section Metal borides)
metal borides can be easily synthesized in large quantities under ambient conditions, an important technological advantage. Most metal borides are hard;...
54 KB (6,863 words) - 12:15, 18 July 2024
Lanthanide (section Borides)
borides. The "higher" borides (LnBx where x > 12) are insulators/semiconductors whereas the lower borides are typically conducting. The lower borides...
107 KB (10,324 words) - 11:27, 28 October 2024
Collider. Certain other metal borides find specialized applications as hard materials for cutting tools. Often the boron in borides has fractional oxidation...
127 KB (13,568 words) - 12:21, 31 October 2024
Americium (section Silicides and borides)
lattice (space group I41/amd), it is isomorphic with PuSi2 and ThSi2. Borides of americium include AmB4 and AmB6. The tetraboride can be obtained by...
77 KB (9,268 words) - 15:13, 11 October 2024
selenium sulfide, an ingredient in some shampoos. Since 1990, a number of borides with chalcogens bonded to them have been detected. The chalcogens in these...
74 KB (8,286 words) - 07:37, 22 October 2024
Rhenium diboride (category Borides)
any transition metal (476 electrons/nm3, compare to 572 electrons/nm3 for osmium and 705 electrons/nm3 for diamond). The addition of boron requires only...
11 KB (1,052 words) - 18:34, 11 September 2024
refractory, unreactive materials such as zirconium dioxide or group 4, 5, and 6 borides. Tetrahedral coordination is a major structural motif in silicon chemistry...
86 KB (10,719 words) - 18:00, 18 October 2024
OsI osmium(I) iodide 76758–38–8 OsI2 osmium(II) iodide 59201–57–9 OsI3 osmium(III) iodide 59201–58–0 OsO2 osmium(IV) oxide 12036–02–1 OsO4 osmium(VIII)...
139 KB (120 words) - 17:07, 15 July 2024
"Lanthanides with Unusually Low Oxidation States in the PrB3– and PrB4– Boride Clusters". Inorganic Chemistry. 58 (1): 411–418. doi:10.1021/acs.inorgchem...
47 KB (8,636 words) - 02:26, 27 October 2024
tetrafluorohydrazine 10036-47-2 F4Na2Sn disodium tetrafluorostannate 15007-55-3 F4OOs osmium oxide tetrafluoride 38448-58-7 F4OP2 diphosphorus tetrafluoride oxide 13812-07-2...
183 KB (107 words) - 22:11, 6 September 2024
metals such as tantalum and tungsten along with the more stable oxides, borides, carbides, nitrides and silicides can tolerate this. Melting in an electric...
139 KB (14,972 words) - 03:21, 5 October 2024
an insoluble salt, K2[ThF6] (potassium hexafluorothorate(IV)). Thorium borides, carbides, silicides, and nitrides are refractory materials, like those...
136 KB (15,997 words) - 10:30, 31 October 2024
observed spectroscopically at high temperatures in the gas phase. Scandium borides and carbides are non-stoichiometric, as is typical for neighboring elements...
38 KB (4,420 words) - 12:19, 25 September 2024
Nitrosylsulfuric acid – NOHSO4 Osmium hexafluoride – OsF6 Osmium tetroxide (osmium(VIII) oxide) – OsO4 Osmium trioxide (osmium(VI) oxide) – OsO3 Tributyltin...
119 KB (8,735 words) - 17:31, 25 October 2024
brittle, and melt at a lower temperature than the corresponding carbides or borides. They are electrical conductors. However, some, such as CrSi2, Mg2Si, β-FeSi2...
58 KB (4,875 words) - 22:03, 27 September 2024
a special case, being the only nonmetal in group 13. The alkali metal borides tend to be boron-rich, involving appreciable boron–boron bonding involving...
214 KB (23,516 words) - 14:04, 26 October 2024
phosphide, Be3P2 has a similar structure to Be3N2. A number of beryllium borides are known, such as Be5B, Be4B, Be2B, BeB2, BeB6 and BeB12. Beryllium carbide...
98 KB (10,510 words) - 14:26, 27 October 2024
agents such as halogens to give indium(III) compounds. It does not form a boride, silicide, or carbide, and the hydride InH3 has at best a transitory existence...
49 KB (5,839 words) - 19:45, 30 October 2024
"Lanthanides with Unusually Low Oxidation States in the PrB3– and PrB4– Boride Clusters". Inorganic Chemistry. 58 (1): 411–418. doi:10.1021/acs.inorgchem...
37 KB (4,830 words) - 15:05, 16 September 2024
lighter flints, contains 25% to 45% lanthanum. Lanthanum oxide and the boride are used in electronic vacuum tubes as hot cathode materials with strong...
48 KB (6,048 words) - 10:26, 10 September 2024