AI overview
Calcium oxide is a chemical compound made from calcium and oxygen that is commonly produced by heating limestone at high temperatures. It has many practical uses in construction, water treatment, and industrial processes, making it an important material in modern manufacturing and infrastructure.
AI-generated from the Wikipedia summary — may contain errors.
Research
10,399 papers- Effects of Calcium-Oxide-Modified Biochar on the Anaerobic Digestion of Vacuum Blackwater.Molecules (Basel, Switzerland) · 2025
- Advances in the fabrication, modification, and performance of biochar, red mud, calcium oxide, and bentonite catalysts in waste-to-fuel conversion.Environmental research · 2023
- Systematic review of antibacterial potential in calcium oxide and silicon oxide nanoparticles for clinical and environmental infection control.Journal of applied biomedicine · 2025
- Calcium oxide enhances the anaerobic co-digestion of excess sludge and plant waste: performance and mechanism.Water science and technology : a journal of the International Association on Water Pollution Research · 2024
- Calcium oxide adsorption of gas phase PCDD/Fs and its impact on the adsorption properties of activated carbon.Environmental pollution (Barking, Essex : 1987) · 2024
via PubMed
Article
Calcium oxide (formula: CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline solid at room temperature. The broadly used term lime connotes calcium-containing inorganic compounds, in which carbonates, oxides, and hydroxides of calcium, silicon, magnesium, aluminium, and iron predominate. By contrast, quicklime specifically applies to the single compound calcium oxide. Calcium oxide that survives processing without reacting in building products, such as cement, is called free lime.
Quicklime is relatively inexpensive. Both it and the chemical derivative calcium hydroxide (of which quicklime is the base anhydride) are important commodity chemicals.