Talk:Manganese

Article changed note

Article changed over to new Wikipedia:WikiProject Elements format by Dwmyers 22:00 Feb 24, 2003 (UTC) and Mkweise. Elementbox converted 14:44, 2 July 2005 by Femto (previous revision was that of 12:16, 27 May 2005).

Information Sources

Some of the text in this entry was rewritten from Los Alamos National Laboratory - Manganese. Additional text was taken directly from USGS Manganese Statistics and Information, USGS Periodic Table - Manganese, from the Elements database 20001107 (via dict.org), Webster's Revised Unabridged Dictionary (1913) (via dict.org) and WordNet (r) 1.7 (via dict.org). Data for the table was obtained from the sources listed on the subject page and Wikipedia:WikiProject Elements but was reformatted and converted into SI units.

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Talk

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56Mn needs to be added, its pretty common. Its half life is 2.6 hours

Could anyone explain tome how Quantum numbers effect the shape, size and orientation of Mn?

Does anyone know how to remediate soil with high manganese content?

Any evidence that Manganese ingested "strengthens bones and connective tissue"? My Pineapple Juice bottle says it does. --Murftown 19:07, 7 August 2007 (UTC)

Oxidation States

This was written poorly.

The most common oxidation states of manganese are +2, +3, +4, +6 and +7, though oxidation states from +1 to +7 are observed.

The only oxidation states missing are +1 and +5, so why not -

The most common oxidation states of manganese are +2, +3, +4, +6 and +7, but oxidation states of +1 and +5 are also observed.

Potassium Permanganate

This is also known as an indicator for acid/base reactions.

This belongs on the potassium permanganate page, not here, as it is not a major use. Also, I am not familiar with this use, I didn't think it changed colour with pH, other than to start decomposing at high pH values. Do you have a reference for this application? Walkerma 15:11, 26 September 2005 (UTC)

In the 17th century it was founded by the chemist named kith glauber

Magnetic Properties

This entry contained quite a bit of erroneous information on the magnetic properties of manganese. Although manganese is well-known to be paramagnetic, it was listed in the entry as "nonmagnetic", so I corrected this in the entry. The only reason I found out about this is because one of my coworkers, relying on Wikipedia (as he should be able to), included manganese in an experiment that was incompatible with the presence of any paramagnetic material. Let this serve as an example of the fact that publishing erroneous information can have real world consequences. Biochemnick 23:29, 8 February 2007 (UTC)

Thanks for fixing that! We do have to be vigilant. Walkerma 05:24, 9 February 2007 (UTC)

Mimic of Parkinson's Disease

This article suggests a link between the ingestion of small amounts of manganese and neurological disorders resembling Parkinson's. Among these is 'Welder's Disease", now undergoing much the same scandal as was once associated with those dieases associated with asbestos -- I read that there are some 6,000 lawsuits connected to the matter.

Now I read in the article that organic manganese compounds are being introduced into gasoline for purposes similiar to those previously met by tetraethyl lead. What is the possibility that we are ONCE AGAIN being poisonsed by short-sighted solutions to industrial problems ??

My wife has an unexplained Parkinson's-like neurological disorder which is slowly taking her life -- so I am naturally very concerned. . —Preceding unsigned comment added by 68.214.135.125 (talk) 20:39, 25 March 2008 (UTC)

Nutrition?

I was reading a nutrition guide that stated that one should find a calcium supplement "containing vitamin D, manganese, and boron so your body can best utilize the calcium ingested." I assumed this was a typo and it meant magnesium, as this is a common additive to calcium supplements. However, I was lead to believe that magnesium primarily had the function of reducing constipation and wind resulting from calcium supplements, particularly in the form of calcium carbonate. Any thoughts? Livingston 13:29, 6 September 2008 (UTC)

New External link

• Potters Manganese Toxicity by Elke Blodgett

I removed the link from the page and added it here. Is this a apropriat link? --Stone (talk) 22:39, 26 October 2008 (UTC)

References

• USGS Manganese
• International Manganese Institute
• Manganese and Its Compounds
• Manganese Von National Research Council
• The elements Manganese
• Marine manganese deposits
• Manganese Nodules
• Understanding the elements Manganesehttp://books.google.de/books?id=gByCNEdt5twC Manganese mineralization
• Metal Ions in Biological Systems: Manganese
• Occurrence of Manganese in Drinking Water and Manganese Control
• Manganese in Health and Disease
• Manganese ores of supergene zone
• Manganese reserves and resources of the world and their industrial implications
• Production of Manganese Ferroalloys
• Action of Sunlight on Glass
• Advances in Inorganic Chemistry
• Manganese in Health and Disease

Shouldn't Manganese also be in Category:Biology and pharmacology of chemical elements ?

Shouldn't Manganese also be in Category:Biology and pharmacology of chemical elements ? Eldin raigmore (talk) 18:51, 16 May 2009 (UTC)

Re-rate?

I think this is getting to be close to A class. I'd like to see it as a Featured Article. SBHarris

GA Review

This review is transcluded from Talk:Manganese/GA1. The edit link for this section can be used to add comments to the review.

Reviewer: Tea with toast (talk) 04:46, 7 March 2010 (UTC)

Review summary

I find that this article sufficiently meeting the Good article criteria:

1. Article is very well written.
2. The text is accurate and is supported by reliable references.
3. The text sufficiently covers the main aspects of the topic.
4. Article is written in a neutral tone.
5. Article is stable.
6. Article contains appropriate and helpful images.

Tea with toast (talk) 17:52, 7 March 2010 (UTC)

Suggestions moving forward to Featured article review

This article is one of the best articles I've read in reviewing GA nominees, and I find it is mostly ready for FA review as it stands. --Tea with toast (talk) 17:52, 7 March 2010 (UTC)

A few minor changes might be helpful:

1. In the "Occurrences and production" section, there are photos of manganese ore and Psilomanganese (manganese ore); however, I could not find what distinguishes these two different ores in the text.
2. I find the third paragraph in "Occurrences and production" to be a bit confusing. Also, the term "ferromanganese" is first occurs there but the subsequent paragraph suggests that ferromangaese is produced, not mined. I would create a new paragraph (or expand the second paragraph) describing the different types of ore.

native manganese

http://ammin.geoscienceworld.org/cgi/reprint/88/5-6/931 describes the findings of native manganese.--Stone (talk) 14:24, 12 September 2010 (UTC)

Infobox image

Wouldn't that make a better infobox image for Mn, it's a FP and shows both the clean metal and oxidized states? — raekyt 09:16, 27 December 2010 (UTC)

We had a similar discussion with the Nickel image and the problem is the blue colour, which is due to salts from the electrolysis. This is hard to explain and some people might think that this is the natural colour it should have.--Stone (talk) 09:26, 27 December 2010 (UTC)

You will never seen only shiny Mn pieces. Mn is and will be always oxidized on air because they arn't air stable. What is important: to view Mn how it is or Mn how it is fresh cleaned (acid etched)? The blue color isn't a Mn salt, it is a thin iridescent oxide layer similar to the bismuth. But I'd like to take a Mn photo only with shiny pieces too, sometime ... .--Alchemist-hp (talk) 10:55, 27 December 2010 (UTC)

Manganese oxidation is very slow, and we normally should not see much of oxide on fresh samples. In the picture above, the blue color is very local, and I do not believe it is iridescence (surface too rough). Materialscientist (talk) 11:12, 27 December 2010 (UTC)

This Mn was clear if I bought it. It is only oxidized on air. I don't know blue Mn oxides. MnO is green, Mn2O3 is brown, Mn3O4 is brown-black and MnO2 is black and Mn2O7 isn't stable. What is the "blue" for a Mn compound? --Alchemist-hp (talk) 12:12, 27 December 2010 (UTC)

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Crystal structure

Does anyone know more about the crystal structure of manganese? See this for an example. Seems like it is not BCC. --HappyCamper 07:16, 13 February 2012 (UTC)

Cubic apparently. See http://www.webelements.com/manganese/crystal_structure.html and ref therein Plantsurfer (talk) 11:02, 13 February 2012 (UTC)