Difference between revisions of "Osmium"
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| − | ''' | + | {{Element | name=Osmium | symbol=Os | anumber=76 | amass=190.2 amu | state=Solid | class=Transition Metals | cstructure=Hexagonal | color=Fine black powder or blue-gray solid | date=1803 | discname=Smithson Tennant and William Hyde Wollaston | origname=From the Greek ''osmê'', meaning ''odour'', due to its pungent smell. | uses=Used to tip gold pen points and instrument pivots (such as compass needles and clock bearings). Also used to make electric light filaments and for high temperature alloys and pressure bearings. | obtained=Produced as a by-product of [[nickel]] refining. }} |
| − | + | '''Osmium''' is a chemical [[element]] that is one of the [[platinum]] [[metal]]s. It is the densest of all the natural elements. Because pure osmium [[oxidize]]s to the extremely toxic osmium tetroxide, osmium is rarely used in its pure form. | |
[[Category:Elements]] | [[Category:Elements]] | ||
Revision as of 17:22, July 14, 2008
| Osmium | |
|---|---|
| Properties | |
| Atomic symbol | Os |
| Atomic number | 76 |
| Classification | Transition Metals |
| Atomic mass | 190.2 amu |
| Other Information | |
| Date of discovery | 1803 |
| Name of discoverer | Smithson Tennant and William Hyde Wollaston |
| Name origin | From the Greek osmê, meaning odour, due to its pungent smell. |
| Uses | Used to tip gold pen points and instrument pivots (such as compass needles and clock bearings). Also used to make electric light filaments and for high temperature alloys and pressure bearings. |
| Obtained from | Produced as a by-product of nickel refining. |
Osmium is a chemical element that is one of the platinum metals. It is the densest of all the natural elements. Because pure osmium oxidizes to the extremely toxic osmium tetroxide, osmium is rarely used in its pure form.