| NOUN | osmium | - |
| SYNO | atomic number 76 | Os | osmium |
NOUN article.ind sg | pl
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Anwendungsbeispiele Englisch
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- Osmium(IV) chloride or osmium tetrachloride is the inorganic compound composed of osmium and chlorine with the empirical formula OsCl4.
- Rhenium and osmium are siderophile elements which are present at very low abundances in the crust.
- Norwegian shale and Japanese chert from the Ladinian-Carnian boundary show a marked change in the ratio of seawater osmium isotopes.
- Osmium hexafluoride, also osmium(VI) fluoride, (OsF6) is a compound of osmium and fluorine, and one of the seventeen known binary hexafluorides.
- Ruthenium tetroxide is equally volatile and even more aggressive than osmium tetraoxide and able to stain even materials that resist the osmium stain, e.g. polyethylene.
- Another explanation for the divergence attributes the weight change to osmium in the platinum iridium alloy which reacts with oxygen to form osmium tetroxide that over multiple years evaporates .
- Ruthenium and osmium have very similar chemistry due to the lanthanide contraction but iron shows some differences from them; for example, although ruthenium and osmium form stable tetroxides in which the metal is in the +8 oxidation state, iron does not.
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