Talk:Manganese

Manganese is currently a Chemistry and materials science good article nominee. Nominated by Keres🌕Luna ^edits! at 16:58, 15 April 2025 (UTC)

An editor has indicated a willingness to review the article in accordance with the good article criteria and will decide whether or not to list it as a good article. Comments are welcome from any editor who has not nominated or contributed significantly to this article. This review will be closed by the first reviewer. To add comments to this review, click discuss review and edit the page.

Manganese was one of the Natural sciences good articles, but it has been removed from the list. There are suggestions below for improving the article to meet the good article criteria. Once these issues have been addressed, the article can be renominated. Editors may also seek a reassessment of the decision if they believe there was a mistake.

Article milestones
Date	Process	Result
March 7, 2010	Good article nominee	Listed
February 9, 2023	Good article reassessment	Delisted

Current status: Delisted good article

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Archive 1

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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.

There is no section on the physical properties of metalic manganese!

i.e. different phases density, crystal structure, mp, bp...

very odd. if i have time one day i will try add some.

there are MANY cool facts:

two phases of solid manganese metal are VERY complex https://www.atomic-scale-physics.de/lattice/struk/mn.html

https://www.isis.stfc.ac.uk/Pages/Solving-a-20-Year-Mystery-The-Frustrating-Case-of-%C3%9FManganese.aspx

https://eprints.nmlindia.org/5609/1/3-28.PDF Wikiskimmmer (talk) 22:36, 22 December 2022 (UTC)[reply]

@Wikiskimmer: You can add this information yourself under Manganese#Physical_properties. –LaundryPizza03 (d c̄) 02:59, 23 December 2022 (UTC)[reply]

it's been a long time. i forget how to do all the wiki things! Wikiskimmmer (talk) 07:07, 23 December 2022 (UTC)[reply]

@Wikiskimmer:The difficult part is the content, the "wiki things" can be dealt with by many people. Its subject-expertise that Wikipedia most fervently seeks, not editing technique. --Smokefoot (talk) 13:56, 23 December 2022 (UTC)[reply]

ugh! writing takes so much effort. ok, here goes Wikiskimmmer (talk) 17:36, 23 December 2022 (UTC)[reply]

also, i TOTLY missed that there are a ton of physical facts on the box to the right! Wikiskimmmer (talk) 17:39, 23 December 2022 (UTC)[reply]

The allotropes are super interesting with their crazily complex unit cells. I just added a section on allotropes. Please add or repair as needed. –MadeOfAtoms (talk) 11:36, 30 January 2023 (UTC)[reply]

Added to wikidata.

α-manganese (Q116486242)

β-manganese (Q116486272)

γ-manganese (Q116486277)

δ-manganese (Q116486285)

DePiep (talk) 12:23, 30 January 2023 (UTC)[reply]

thanks! looks cool. Wikiskimmer (talk) 19:42, 15 July 2023 (UTC)[reply]

GA reassessment

Manganese

The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Article (edit | visual edit | history) · Article talk (edit | history) · Watch • Watch article reassessment page • Most recent review

Result: Delisted. ¹⁴¹ Pr {^contribs/_{Best page}} 19:11, 9 February 2023 (UTC)[reply]

This article is a GA from 2010. There are lots of uncited material which needs to be cited, and needs to be cleaned up (for example, the lead banner). I've gone ahead and added some {{Citation needed}} tags. ¹⁴¹ Pr 09:04, 4 February 2023 (UTC)[reply]

Delist Significant unsourced material is still there. Onegreatjoke (talk) 16:24, 8 February 2023 (UTC)[reply]

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Discovery of Manganese. Whose fame?

Double sharp (greetings to Double sharp) gave the honor of the first discoverer to Kaim (1770)^[1] on Wikipedia. Others say that it was Scheele^[2] with his friend Gahn (1774). I understand that Kaim did it earlier, but the source implies his discovery was not fully confirmed, right? It turns out that Kaim was one of those who discovered manganese... What can we do?

References

Tosha Langue (talk) 17:28, 19 November 2023 (UTC)[reply]

@Tosha Langue: Thanks for prompting me to investigate this further! RSC credits Kaim too, and Venetskii in 1966 said there were grounds to believe he was first, though some details are missing. The Pergamon volume on group 7 says In 1770 J. G. Kaim heated pyrolusite with black flux and obtained a regulus, but it was not until 1774 that the great Swedish chemist, C. W. Scheele, realized that the ore and its extracts contained a new element. Although Scheele made this discovery he did not succeed in isolating the metal, and this was achieved by J. G. Gahn the same year. However in 2020 a historical study of Scheele and Bergman wrote It is possible that manganese had been prepared before Scheele’s studies. It is, for example, possible that Kaim prepared manganese in 1770 [and here Kaim's original work, which I can't consult, is cited], but his results are unverified and gained little recognition.

I think now that it's probably best to hedge Kaim's claim with a word like "possibly" or "probably". Double sharp (talk) 02:33, 20 November 2023 (UTC)[reply]

Pentacarbonyl

See “Pentacarbonylhydridomanganese”. On said article’s talk page, i posted a complaint about said article. Solomonfromfinland (talk) 01:36, 7 April 2024 (UTC)[reply]

GA Review

This review is transcluded from Talk:Manganese/GA2. The edit link for this section can be used to add comments to the review.

Nominator: Keresluna (talk · contribs) 16:58, 15 April 2025 (UTC)[reply]

Reviewer: Reconrabbit (talk · contribs) 20:25, 15 April 2025 (UTC)[reply]

Hello, I saw this nomination on my watchlist, so of course I had to jump on it immediately. I'm happy to work on this review. Will keep working over the week. Noting here: I see you have only made 7 edits to the article over 2 days; most of the other major authors have not made edits in a while, so I'll assume the nomination is without major issue there, but are you confident that the sources used throughout the article are reliable and support the information within in this time? -- Recon rabbit 20:25, 15 April 2025 (UTC)[reply]

Thank you for taking on this review. Did not expect the review to be taken up so immediately. I will try to respond ASAP, but may take up to 3 days to reply to a comment. Keres🌕Luna ^edits! 21:09, 15 April 2025 (UTC)[reply]

Understandable, I'm not asking for a quick response. It will take me a while to review as well. -- Recon rabbit 22:07, 15 April 2025 (UTC)[reply]

I've gone through and added some links in addition to minor copyediting. Still working through it though. -- Recon rabbit 18:28, 17 April 2025 (UTC)[reply]

Prose

What is meant by difficult to fuse?
I think it's safe to just say "water" instead of water containing dissolved oxygen, because the latter sentence is more likely to invite confusion. The citation on that one needs to be expanded, as well. A rare exception to the otherwise very good referencing style.

References

Layout: All in order using {{Reflist}}, though the subheading for "Sources" is awkward (though I can't rightfully complain about that because it's my fault anyway). No other notes Y

Spot checking

Checking 20 references (~15%). Footnote numbers based on this revision:

[101] Y

Scope

Broad:
Narrow:

Stability

Neutrality:
Edit warring: Article sees occasional disruption, but no major changes against consensus form of the article that have not been discussed on the talk page. As it sees no more disruption than any other element article, marking the stability as Y OK.

Images

Free/Fair use: Images variously use Free Art License, CC-BY-SA 4.0, 3.0, 2.5, 2.0, 1.0, GNU 1.2 licenses, some are Public Domain, and all are believable or sourced. Y
Relevance:
- Unit cells make sense for more complex allotropes; phase diagram makes sense there. Compounds are well represented by the solid MnCl2 and KMnO4 solution. Placement of Gahn and cave paintings in "history" is appropriate. Naturally occurring forms of manganese are well placed. Use of English text is a bit awkward in the process flow diagram but I don't see an easy way to replace it; any changes are out of scope. Combat helmet and nickel appropriate examples for "applications", but the 5 cent coin could be placed slightly later in the section to be better placed with the paragraphs that discuss currency. Biomolecule is well placed (though araginase could be glossed as "the enzyme araginase"). Structure of MMT is about as good as you can get to represent this chemical in "Exposure", but the ball and stick model File:MMT-3D-balls.png is also an option. For all of the above, Y
  - Image of nickel moved to match content. Keres🌕Luna ^edits! 21:09, 15 April 2025 (UTC)[reply]
- Global production may be better placed in the following section (Production), even though the main locations it's mined are listed under "Occurrence". Don't want to create excess clutter though and it's relevant to both sections.

Good Article review progress box

Criteria: 1a. prose () 1b. MoS () 2a. ref layout () 2b. cites WP:RS () 2c. no WP:OR () 2d. no WP:CV ()

3a. broadness () 3b. focus () 4. neutral () 5. stable () 6a. free or tagged images () 6b. pics relevant ()

Note: this represents where the article stands relative to the Good Article criteria. Criteria marked are unassessed

[1] ttps://link.springer.com/article/10.1007/s10698-022-09448-5

[2] ttps://www.britannica.com/science/manganese

[1]

[2]