From Wikipedia, the free encyclopedia
Jump to: navigation, search
Good article Osmium has been listed as one of the Natural sciences good articles under the good article criteria. If you can improve it further, please do so. If it no longer meets these criteria, you can reassess it.
June 18, 2009 Good article nominee Listed
WikiProject Elements (Rated GA-class, High-importance)
WikiProject icon This article is supported by WikiProject Elements, which gives a central approach to the chemical elements and their isotopes on Wikipedia. Please participate by editing this article, or visit the project page for more details.
 GA  This article has been rated as GA-Class on the quality scale.
 High  This article has been rated as High-importance on the importance scale.
Version 0.5  
WikiProject icon This article has been selected for Version 0.5 and subsequent release versions of Wikipedia.
 ???  Quality: not yet rated
 ???  Importance: not yet rated


Article changed over to new Wikipedia:WikiProject Elements format by maveric149. Elementbox converted 11:27, 14 July 2005 by Femto (previous revision was that of 22:25, 27 May 2005).

Information Sources[edit]

Some of the text in this entry was rewritten from Los Alamos National Laboratory - Osmium. Additional text was taken directly from USGS Osmium Statistics and Information, USGS Periodic Table - Osmium, from the Elements database 20001107 (via, Webster's Revised Unabridged Dictionary (1913) (via and WordNet (r) 1.7 (via Data for the table were obtained from the sources listed on the subject page and Wikipedia:WikiProject Elements but were reformatted and converted into SI units. Information in the main article concerning the infobox's value of Osmium's bulk modulus -- the value from a (controversial?) 2002 experimental result on osmium's compressibility -- was taken from journal articles by H Cynn et al in Phys. Rev. Lett. (original paper) and by B R Sahu et al in Phys. Rev. B (example of refutation), both of which are cited in full in the main article's References section.


Uses and Toxicity of Osmium[edit]

Uses of Osmium[edit]

- "Major uses for osmium tetroxide identified are for catalysis, especially in steroid synthesis, and for tissue staining." Osmium: An Appraisal of Environmental Exposure Environ Health Perspect. 1974 August; 8: 201–213.

- Nervous Tissue staining:

- caoutchouc staining:

The claim that "An alloy of 90% platinum and 10% osmium is used in surgical implants such as pacemakers and replacement of pulmonary valves" is incorrect. The following reference, Chevalier, Patrick. "Mineral Yearbook: Platinum Group Metals" (PDF). Natural Resources Canada. Retrieved 2008-10-17. [dead link], is incorrect when it makes this claim; if you track down what this reference cites, you find that such alloys have been tested but there is no record of such alloys being used in actual implants.

External links modified[edit]

Hello fellow Wikipedians,

I have just modified one external link on Osmium. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

You may set the |checked=, on this template, to true or failed to let other editors know you reviewed the change. If you find any errors, please use the tools below to fix them or call an editor by setting |needhelp= to your help request.

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

If you are unable to use these tools, you may set |needhelp=<your help request> on this template to request help from an experienced user. Please include details about your problem, to help other editors.

Cheers.—cyberbot IITalk to my owner:Online 18:39, 31 March 2016 (UTC)

Need to fix Hardness Units[edit]

The hardness is given in a unit that, by itself, does not fully describe how hard the material is(GPa). The author is probably referring to Vickers hardness, but I can't be sure without checking the citations. Unfortunately all of the citations are behind paywalls, so I can't confirm. Can someone with access to the cited articles correct it? Bgovern (talk) 04:49, 22 August 2017 (UTC)