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Chemical compound From Wikipedia, the free encyclopedia
Hassium tetroxide (also hassium(VIII) oxide) is the inorganic compound with the formula HsO4. It is the highest oxide of hassium, a transactinide transition metal. It has little use outside of scientific interest, where it is often studied in comparison to osmium tetroxide and ruthenium tetroxide, its lighter octavalent group 8 element analogs.
Names | |
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Preferred IUPAC name
Hassium tetraoxide | |
Systematic IUPAC name
Tetraoxohassium | |
Other names
Hassium(VIII) oxide | |
Identifiers | |
3D model (JSmol) |
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Properties | |
HsO4 | |
Molar mass | 334 g·mol−1 |
Structure[1] | |
tetrahedral (predicted) | |
Related compounds | |
Other cations |
Osmium(VIII) oxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Because of the extreme cost and difficulty of producing hassium, hassium tetroxide has never been obtained in macroscopic amounts, as only a few molecules have ever been synthesized. As a result, many of its physical properties are experimentally uncharacterized and unknown. However, most research available generally shows hassium tetroxide to behave like a typical congener to osmium tetroxide. Hassium tetroxide is less volatile than osmium tetroxide.[2][3][4]
Hassium tetroxide can be obtained by reacting atomic hassium with oxygen at 600 °C.[3][2]
Hassium tetroxide can be combined with sodium hydroxide in an acid-base reaction, in which case it acts like the acid, to form sodium hassate(VIII):[5]
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