Kalsium: Perbedaan antara revisi

Senyawa kalsium telah dikenal selama ribuan tahun, meskipun susunan kimiawinya baru diketahui pada abad ke-17.<ref name="Greenwood108">Greenwood dan Earnshaw, hlm. 108</ref> Kapur sebagai [[kapur|bahan bangunan]]<ref name="minerals.usgs">{{cite web |title = Commodity report:Lime |publisher = [[Survei Geologi Amerika Serikat|USGS]] | first = M. Michael | last = Miller | url = http://minerals.usgs.gov/minerals/pubs/commodity/lime/390498.pdf | access-date= 24 Maret 2023}}</ref> dan sebagai [[plester kapur|plester untuk patung]] telah digunakan sejak sekitar 7000&nbsp;SM.<ref>{{Cite journal |title=Burnt Lime Products and Social Implications in the Pre-Pottery Neolithic B Villages of the Near East |journal=Paléorient |first=Yosef |last=Garfinkel |date=1987 | doi = 10.3406/paleo.1987.4417 |jstor=41492234 |volume=13 |issue=1 |pages=69–76}}</ref> [[Tanur kapur]] pertama berasal dari tahun 2500&nbsp;SM dan ditemukan di [[Khafajah]], [[Mesopotamia]].<ref>{{cite book | url =https://books.google.com/books?id=ryap1yyEGAgC&pg=PA4 | page = 4 | title =Lime Kilns and Lime Burning | isbn =978-0-7478-0596-0 | last1 =Williams | first1 =Richard | date =2004 }}{{Pranala mati|date=April 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref><ref>{{cite book | url = https://books.google.com/books?id=vHQsGAKAdYoC | title = Lime and Limestone: Chemistry and Technology, Production and Uses | isbn = 978-3-527-61201-7 | last1 = Oates | first1 = J. A. H | year = 2008}}</ref>