Talk:Osmium tetroxide

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News sources[edit]

Anome, you changed the line I added to suggest that is just ABC reporting on this threat... but Google News shows that everyone is reporting it now. Is ABC the sole originator of the story? Pete/Pcb21 (talk) 12:06, 6 Apr 2004 (UTC)

To answer my own question, most reports do simply refer to ABC, except the BBC, which seems to imply it has further information. Pete/Pcb21 (talk) 12:09, 6 Apr 2004 (UTC)

Page name[edit]

This is a bit late, but is osmium(VIII) oxide really a better name for this page than osmium tetroxide or osmium tetraoxide? Physchim62 (talk) 15:14, 25 July 2006 (UTC)

I support renaming this page, I would go all the way - osmium tetroxide.--Smokefoot 22:14, 25 July 2006 (UTC)
That was its old name, before someone moved it... Physchim62 (talk) 16:18, 26 July 2006 (UTC)
I would also go for Osmium tetroxide. It is unambiguous, more decriptive of structure than osmium(VIII) oxide, and it is what people call this thing when they talk about it, or use it in an equation. ChemistHans 19:01, 23 August 2007 (UTC)
Add me to the list of people who would prefer this page to be called osmium tetroxide. That's what everyone calls it!
Ben 19:04, 23 August 2007 (UTC)

I renamed it. Everyone's a winner.
Ben 19:06, 23 August 2007 (UTC)


Interesting. I've looked at the citation and what is stated here is, indeed, a faithful reproduction of the citation. Not how its done though; the citation is a garbled combination of two different methods. Bulk native ore is roasted in a tube furnace while drawing air over the heated material generating OsO4 directly which is dissolved in aqueous NaOH in bubblers. The solution is saturated with KOH then methanol or ethanol added to precipitate Potassium Osmate as a violet powder. Having recovered the majority of the Os in this way the remaining material is roasted in Chlorine to produce anhydrous IrCl3 as a prelude to porcessing the ore for the Ir. Any remaining Os is usually ignored as there is little market for it. In the case of Aqua Regia insolubles, they are fused with NaOH and Na2O2 in a 3% Nickel steel crucible at cherry-red heat for 8 to 12 hours and poured onto a cold surface to form a sheet. the sheet is dissolved in cold water which is decanted to remove the majority of the NaOH. The residue is treated with a light Aqua Regia which generates OsO4 which can be recovered by an alkaline scrubber if desired. Use of this method to recover osmium is rare and it is primarily intended to render Ir into hydrated oxides for further processing. Drrocket 19:30, 17 November 2006 (UTC)

peer reviewer output[edit]

The following suggestions were generated by a semi-automatic javascript program, and might not be applicable for the article in question.

You may wish to browse through User:AndyZ/Suggestions for further ideas. Thanks, Wim van Dorst (Talk) 16:54, 3 February 2007 (UTC)

Incorrect physical information[edit]

This NIH pdf seems to disaggree with a lot of the physical data, most notably the appearance of OsO4 and OsO2. Seems that OsO4 is actually clear yellow and OsO2 is in fact a black sooty substance(this is consistent with my own observations) Can someone confirm and revise this?? Seansheep 10:55, 17 August 2007 (UTC)

To answer my own question thisAlfarAesar MSDS confirms OsO2 is black powder Seansheep 11:30, 17 August 2007 (UTC)
And OsO4 is clear... maybe it turns yellow if it's contaminated. -- (talk) 03:22, 4 January 2008 (UTC)
I agree that I would like it to be clear and colourless, but the sources linked above don't seem to think it is, and I think we have to trust the NIH & chemical supplier over an uncited website (I know they have a photo of a colourless solid, but I could also provide a photo of a clear yellow solid) Seansheep (talk) 07:41, 8 January 2008 (UTC)
Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0-08-037941-9.  says that it's yellow. --Itub (talk) 15:30, 9 January 2008 (UTC)

Anhydrous solution of HF??[edit]

The article states "Purple cis-OsO2F4 forms at 77 K in an anhydrous solution of HF". What would that be a solution in?? Liquid nitrogen?? Plantsurfer (talk) 16:02, 19 March 2009 (UTC)

Does it mean a solution of cis-OsO2F4 in anhydrous HF?
Ben (talk) 17:38, 19 March 2009 (UTC)

Osmic Acid (Osmium Tetroxide) - medical journal references[edit]

W. P. Griffith Osmium Tetroxide and Its Applications Platinum Metals Review Volume 18 Issue 3 July 1974 Pages 94-96

W. P. Griffith Ruthenium and Osmium Oxo Complexes as Organic Oxidants Platinum Metals Review Volume 33 Issue 4 October 1989 Pages 181-185

Osmium and Ruthenium Complexes Platinum Metals Review Volume 35 Issue 1 January 1991 Page 31

V. N. Pitchkov The Discovery of Ruthenium “I NAMED THE NEW BODY, IN HONOUR OF MY MOTHERLAND” Platinum Metals Review Volume 40 Issue 4 October 1996 Pages 181-188

Effect on human:

Lawrence T. Fairhall Toxicology of the Newer Metals Br J Ind Med. 1946 October; 3(4): 207–212.

Ivan C. Smith, Bonnie L. Carson, and Thomas L. Ferguson Osmium: An Appraisal of Environmental Exposure Environ Health Perspect. 1974 August; 8: 201–213.

P E Brubaker, J P Moran, K Bridbord, and F G Hueter Noble metals: a toxicological appraisal of potential new environmental contaminants. Environ Health Perspect. 1975 April; 10: 39–56.

A. I. G. McLaughlin, R. Milton, and Kenneth M. A. Perry Toxic Manifestations of Osmium Tetroxide Br J Ind Med. 1946 July; 3(3): 183–186.

INDUSTRIAL HYGIENE, Toxycity of Osmium Tetroxide (Osmic Acid), Abstract F.R.Brunot, J.Indust.Hyg.,XV, 3:136-143. Am J Public Health Nations Health. 1933 August; 23(8): 861–868.

A System of Chemistry for the use of Students of Medicine Franklin Bache 1819 p.120

M.Raymond Le Progrés Médical (27th June, 1874) A Handy-Book of Forensic Medicine and Toxicology W.Bathurst Woodman, Charles Meymott Tidy, London pp. 223-224

Platinum-Group Metals Medical and Biologic Effects of Environmental Pollutants National Academy of Science Washington, D.C. 1977

The New York Medical Journal Vol.3 1866 pp. 269-270 Amblyopia Produced by Osmic Acid Henry D.Noyes

The Edinburgh Journal of Medical Science Vol.3 1827 p.324 Experiments to determine the action of Titanium and Osmium upon the Human Body Ch. Gmelin

Makarovsky I, Markel G, Hoffman A, Schein O, Finkelstien A, Brosh-Nissimov T, Tashma Z, Dushnitsky T, Eisenkraft A. Osmium tetroxide: a new kind of weapon. Isr Med Assoc J. 2007 Oct;9(10):750-2.



M Dizdaroglu, E Holwitt, M P Hagan, and W F Blakely Formation of cytosine glycol and 5,6-dihydroxycytosine in deoxyribonucleic acid on treatment with osmium tetroxide. Biochem J. 1986 April 15; 235(2): 531–536.

Najrana T, Saito Y, Uraki F, Kubo K, Yamamoto K. Spontaneous and osmium tetroxide-induced mutagenesis in an Escherichia coli strain deficient in both endonuclease III and endonuclease VIII. Mutagenesis. 2000 Mar;15(2):121-5.

Neutralization and Disposal of Osmium Tetroxide Ref: Cooper, K. (1988) Neutralization of Osmium Tetroxide in case of accidental spillage and for disposal. Bulletin of The Microscopical Society of Canada. 8:24-28 Lunn, G.; Sansone, E.B. Osmium Tetroxide. Destruction of Hazardous Chemicals in the Laboratory; Program Resources, Inc. Frederick, MD; pg. 211-213

Protocol for Disposing of Osmium Tetroxide Contaminated Plastic Containers (solid osmium tetroxide contaminated waste)

Neurological applications:


Chas. D. Lockwood Surgical Treatment of Trifacial Neuralgia Cal State J Med. 1909 September; 7(9): 334.


T. C. McCleave The Present Status of the Osmic Acid Treatment of Neuralgia Cal State J Med. 1910 February; 8(2): 63–64.

T. C. McCleave Dr. McCleave's Paper; a Curious Mistake Cal State J Med. 1910 March; 8(3): 108.

Rheumatological applications:

J M Gumpel and D J Shawe Diffuse pigmented villonodular synovitis: non-surgical management. Ann Rheum Dis. 1991 August; 50(8): 531–533.

L. Dazziano, J. Gagnon, and C. A. Laurin Chemical synovectomy of an experimental arthritis. Can Med Assoc J. 1969 July 12; 101(1): 24–29.

Henry D. Noyes Amblyopia produced by Osmic Acid Trans Am Ophthalmol Soc. 1866; 1(3): 34–35.

Bessant R, Steuer A, Rigby S, Gumpel M. Osmic acid revisited: factors that predict a favourable response. Rheumatology (Oxford). 2003 Sep;42(9):1036-43. Epub 2003 May 30.

Mitchell N, Laurin C, Shepard N. The effect of osmium tetroxide and nitrogen mustard on normal articular cartilage. J Bone Joint Surg Br. 1973 Nov;55(4):814-21.

Other references:

G.W.Leddicotte Octoble 1981 The Radiochemistry if Osmium Nuclear Science Series U.S. Atomic Energy Commission

Hand-Book of Chemistry Vol.Vi Metals, London 1852 Leopold Gmelin 407-410

The Dictionaries to the Chemical Atlas being a Dictionary of Sample Substances A.Normandy, London George Knight and Co., 1857 p.115

A cyclopaedia of drug pathogenesy Richerd Huges, J.P.Dake p. London published for the British Omoepathic Society 1891 p.665

Effect of Intraarticular Osmic Acid on Synovial Membrane Volume and Inflammation, Determined by Magnetic Resonance Imaging M. Østergaard; M. Stoltenberg; P. Gideon; S. Wieslander; S. Sonne-holm; P. Kryger; M. Sonne Scandinavian Journal of Rheumatology, 1502-7732, Volume 24, Issue 1, 1995, Pages 5 – 12

Osmic Acid Versus Yttrium-90 in Rheumatoid Synovitis of the Knee H. Sheppeard; A. Aldin; D. J. Ward Scandinavian Journal of Rheumatology, 1502-7732, Volume 10, Issue 3, 1981, Pages 234 – 236

Use of Osmic Acid in the Topical Treatment of Exudative Synovitis of the Knee Joint Martti Nissilä Scandinavian Journal of Rheumatology, 1502-7732, Volume 8, Issue 2, Supplement 29, 1979, Pages 1 – 44

Reversible Renal Side Effects Of Intra-Articular Osmic Acid Injection M. Nissilä; H. Isomäki; S. Jalava; M. Nissilä Scandinavian Journal of Rheumatology, 1502-7732, Volume 7, Issue 2, 1978, Pages 79 – 80

Absence Of Increased Frequency Of Degenerative Joint Changes After Osmic Acid Injections M. Nissilä Scandinavian Journal of Rheumatology, 1502-7732, Volume 7, Issue 2, 1978, Pages 81 – 84

Osmic Acid in Rheumatoid Synovitis: A Controlled Study M. Nissilä; H. Isomäki; K. Koota; A. Larsen; K. Raunio Scandinavian Journal of Rheumatology, 1502-7732, Volume 6, Issue 3, 1977, Pages 158 – 160

Osmic Acid in Rheumatoid Synovitis: A Controlled Study M. Nissilä; H. Isomäki; K. Koota; A. Larsen; K. Raunio Scandinavian Journal of Rheumatology, 1502-7732, Volume 6, Issue 2, 1977, Pages 111 – 112

Morphological Findings in Joint Cartilage After Osmic Acid Treatment M. Nissilä; J. Ahlqvist; Y. Collan; P. Raunio; H. Isomäki Scandinavian Journal of Rheumatology, 1502-7732, Volume 6, Issue 4, 1977, Pages 231 – 236

The Immediate Effects of Intra-Articular Injections of Osmic Acid A. Micheli; I. Boussina; G. H. Fallet Scandinavian Journal of Rheumatology, 1502-7732, Volume 5, Issue 2, 1976, Pages 91 – 96

Intra-Articular Triamcinolone Hexacetonide and Osmic Acid in Persistent Synovitis of the Knee Jorma Anttinen; Martti Oka Scandinavian Journal of Rheumatology, 1502-7732, Volume 4, Issue 3, 1975, Pages 125 – 128

Changes in the Synovial Fluid Caused by Osmic Acid G. Lörincz; H. A. Isomäki; J. Martio Scandinavian Journal of Rheumatology, 1502-7732, Volume 16, Issue 1, 1970, Pages 217 – 222

Further Studies on the Use of Osmic Acid in the Treatment of Arthritis F. -E. Berglöf Scandinavian Journal of Rheumatology, 1502-7732, Volume 10, Issue 1, 1964, Pages 92 – 98

Intra-Articular Osmic Acid in Rheumatoid Arthritis Leevi Hurri; Kai Sievers; Martti Oka Scandinavian Journal of Rheumatology, 1502-7732, Volume 9, Issue 1, 1963, Pages 20 – 27

Osmic Acid in Arthritis Therapy Frans-Erik Berglöf Scandinavian Journal of Rheumatology, 1502-7732, Volume 5, Issue 1, 1959, Pages 70 – 74

An Osmic Tetroxide Vapor Fixation Chamber J. B. Clark Biotechnic and Histochemistry, 1473-7760, Volume 30, Issue 1, 1955, Pages 29 – 30

High Precision and High Sensitivity Measurements of Osmium in Seawater. Chen C, Sharma M Anal Chem 2009 Jun 5. —Preceding unsigned comment added by (talk) 09:01, 13 August 2009 (UTC)

Thank you. This list is certainly an stark reminder of just how many papers are published even on a specialized topic. For this reason, Wikipedia must be very careful with selecting references lest readers be distracted by narrowly focused papers. We are really in a forest vs the trees situation. --Smokefoot (talk) 12:45, 13 August 2009 (UTC)
Yes, on a forest intricate, although it is a ultra-specialized topic. My intent is to provide an rerview of the situation (in Wiki discussion), from which to select the most significant in Wiki article. Interesting is the continuous theft of catalytic converters, which contain Platinum-Group Metals. ( - Sacramento Catalytic Converter Thief - —Preceding unsigned comment added by (talk) 09:43, 16 August 2009 (UTC)

Assessment comment[edit]

The comment(s) below were originally left at Talk:Osmium tetroxide/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

Substituted at 21:54, 26 June 2016 (UTC)