Talk:Calcium#Coral Calcium Merge
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{{GA|04:20, 27 June 2017 (UTC)|oldid=787720736|topic=natsci|page=1}}
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Crystal structure
According to the handbook of chemistry and physics 95th edition (CRC Press), face-centered cubic calcium turns into body-centered cubic above 443°C and not hexagonal as mentionned in the article. This is also written in this abstract (here: https://iopscience.iop.org/article/10.1149/1.2430364/meta) from 1956 (but for a temperature of 464°C). Fullmetalgrudo (talk) 13:42, 28 January 2024 (UTC)
:Thanks {{u|Fullmetalgrudo}}, I find other recent authoritative sources agree with your post and updated the article to state that it changes from fcc to bcc as you note. The source I used (Arblaster 2018) says that publications from 1956 and 1958 "reported an intermediate hexagonal close-packed (hP2) structure but Peterson and Fattore 1961 showed that this was due to hydrogen contamination." –MadeOfAtoms (talk) 10:08, 20 April 2024 (UTC)
Applications
One application I had read about elsewhere in Wikipedia which I didn't see on this page is that calcium can be alloyed with magnesium to prevent it from catching fire; while alloying aluminum with magnesium also reduces the risk of catching fire, such alloys can still catch fire at very high temperatures, while a suitable alloy with calcium would not catch fire under any circumstances. Quadibloc (talk) 14:17, 26 June 2024 (UTC)
:I checked "Magnesium Alloys" (doi 10.1002/14356007.a15_581). No mention of Ca-Mg alloys.--Smokefoot (talk) 18:56, 27 June 2024 (UTC)
Semi-protected edit request on 24 December 2024
{{Edit semi-protected|Calcium|answered=yes}}
Change "heat of vaporisation" to "heat of vaporization" bc this is in British Oxford English. 98.219.46.92 (talk) 02:40, 24 December 2024 (UTC)
Wiki Education assignment: BIOL 3358 Cellular and Molecular Neuroscience
{{dashboard.wikiedu.org assignment | course = Wikipedia:Wiki_Ed/Temple_University/BIOL_3358_Cellular_and_Molecular_Neuroscience_(Spring) | reviewers = Sandisk9045 | start_date = 2025-01-14 | end_date = 2025-04-28 }}
— Assignment last updated by Sandisk9045 (talk) 02:13, 2 March 2025 (UTC)
Semi-protected edit request on 27 April 2025
{{edit semi-protected|Calcium|answered=yes}}
Change the heading “Vapor pressure” to “Vapour pressure” - The only difference between British Oxford English and British non-Oxford English is that it uses -ize instead of -ise. 96.33.107.226 (talk) 02:48, 27 April 2025 (UTC)
:{{already done}} Aston305 (talk) 19:18, 28 April 2025 (UTC)