View source for Talk:Iron

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== Chemicals and chemistry ==

Putting cost of the compounds per 100g will be useful for knowing it's worth and whether it's needed for a chemistry lab. There are variety of reagents ranging from commercial to L.R.. So I'm expecting Wikipedia team to put it asking with other properties of chemicals. Shivaramsenthil (talk) 13:13, 17 November 2023 (UTC) [[User:Shivaramsenthil|Shivaramsenthil]] ([[User talk:Shivaramsenthil|talk]]) 13:16, 17 November 2023 (UTC)

==Wiki Education assignment: ERTH 4303 Resources of the Earth==
{{dashboard.wikiedu.org assignment | course = Wikipedia:Wiki_Ed/Carleton_University/ERTH_4303_Resources_of_the_Earth_(Winter_2024) | assignments = [[User:Sharleen Lawrence|Sharleen Lawrence]] | start_date = 2024-01-12 | end_date = 2024-04-10 }}

<span class="wikied-assignment" style="font-size:85%;">— Assignment last updated by [[User:Sharleen Lawrence|Sharleen Lawrence]] ([[User talk:Sharleen Lawrence|talk]]) 23:25, 10 February 2024 (UTC)</span>

== Addition of another alpha particle ==

"Since addition of another alpha particle, resulting in <sup>60</sup>Zn, requires a great deal more energy": This needs clarification as the process is still exothermic. Should it be that the activation Energy is high? [[Special:Contributions/14.52.231.91|14.52.231.91]] ([[User talk:14.52.231.91|talk]]) 00:51, 16 August 2024 (UTC)

:The text is clarified. Beyond <sup>56</sup>Ni, [[photodisintegration]] becomes important, and it obstructs the alpha process. [[User:Nucleus hydro elemon|Nucleus hydro elemon]] ([[User talk:Nucleus hydro elemon|talk]]) 13:13, 16 August 2024 (UTC)

== Minor error in article ==

In the second paragraph of the article, it says smelting iron requires temperatures "about 500 °C (932 °F) higher than that required to smelt copper."
This most likely uses Wikipedia's standard temperature conversion formula (°F = (9/5)°C + 32). However, for a ''change'' in temperature, the formula is incorrect. It should be Δ°F = (9/5)Δ°C, so the text should read "about 500 °C (900 °F) higher". [[User:CopperChemist|CopperChemist]] ([[User talk:CopperChemist|talk]]) 03:36, 17 April 2025 (UTC)
:{{ping|CopperChemist}} Done. Thank you! [[User:Double sharp|Double sharp]] ([[User talk:Double sharp|talk]]) 06:42, 17 April 2025 (UTC)

== Iron accounts "for over 90% of worldwide metal production" ==

Is this statistic reliable and/or up-to-date? The citation at the end of the paragraph is from Greenwood & Earnshaw (1997), which I (have a feeling) was a reprint or reissue from the 1980s - and it's unclear if it attaches to the whole paragraph or just the general info at the end? 

There is an undated inline comment in the article reading: "The UGSG gives a production of iron including recycling with 998Mt, while aluminium (39Mt), copper (18Mt), zinc (11Mt) and lead (8.6Mt) add up to 77 Mt, all including recycling. This more like 8% than 5." Someone has queried this before? 

Looking at the current USGS Iron & Steel MCS page (https://www.usgs.gov/centers/national-minerals-information-center/iron-and-steel-statistics-and-information), it says: "Iron and steel comprise about 95 percent of all the tonnage of metal produced annually in the United States and the world." But there is no date on the page.

It seems reasonable to query the figure, so I have added a cn for now. [[User:45154james|45154james]] ([[User talk:45154james|talk]]) 09:46, 15 June 2025 (UTC)