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• 19:21, 20 April 2023 JeffEvarts talk contribs created page Calcium Oxide (Created page with "{{Compound|name=Calcium oxide|chemf=CaO|mm=56.0774|density=3.34|mp=2613|bp=2850|stp_p=solid|stp_q=white|nfpa_h=3|nfpa_r=2}} ==Uses== ===Primary=== * Feedstock for calcium hydroxide, lye, and all other hydroxides ===Secondary=== * Heat without fire: *: {{#Chem: CaO(s)+H2O(l)=Ca(OH)2(aq)}} (ΔHr = −63.7 kJ/mol of CaO) ==Natural occurrence== * Does not occur naturally ==Hazards== * Corrosive to skin * Calcium oxide dust irritates the eyes and lungs * Mixed with water...")