Editing Calcium hydroxide
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Calcium hydroxide adopts a [[polymeric]] structure, as do all metal hydroxides. The structure is identical to that of Mg(OH){{sub|2}} (''brucite structure''); i.e., the [[cadmium iodide]] motif. Strong [[hydrogen bond]]s exist between the layers.<ref name=G&W/> |
Calcium hydroxide adopts a [[polymeric]] structure, as do all metal hydroxides. The structure is identical to that of Mg(OH){{sub|2}} (''brucite structure''); i.e., the [[cadmium iodide]] motif. Strong [[hydrogen bond]]s exist between the layers.<ref name=G&W/> |
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Calcium hydroxide is produced commercially by treating (slaking) |
Calcium hydroxide is produced commercially by treating (slaking) lime with water: |
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:CaO + H<sub>2</sub>O → Ca(OH)<sub>2</sub> |
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Alongside the production of quicklime from [[limestone]] by [[calcination]], this is one of the oldest known chemical reactions; evidence of [[prehistoric]] production dates back to at least 7000 BCE.<ref>{{cite web|url=https://www.sciencelearn.org.nz/resources/1420-history-of-limestone-uses-timeline |title=History of limestone uses – timeline |website=Science Learning Hub – Pokapū Akoranga Pūtaiao |publisher=Curious Minds New Zealand|date=October 1, 2012|access-date=June 7, 2024}}</ref> |
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==Uses== |
==Uses== |