Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
See also: Lime (material)
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.[5]
Quicklime is relatively inexpensive. Both it and the chemical derivative calcium hydroxide (of which quicklime is the base anhydride) are important commodity chemicals.
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^ abHaynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.55. ISBN 1-4398-5511-0.
^Calciumoxid Archived 2013-12-30 at the Wayback Machine. GESTIS database
^ abZumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A21. ISBN 978-0-618-94690-7.
^ abcdNIOSH Pocket Guide to Chemical Hazards. "#0093". National Institute for Occupational Safety and Health (NIOSH).
^"free lime". DictionaryOfConstruction.com. Archived from the original on 2017-12-09.
Calciumoxide (formula: CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline...
Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride...
a colorless crystal or white powder and is produced when quicklime (calciumoxide) is mixed with water. It has many names including hydrated lime, caustic...
about 80–85% of CaC2 (the rest is CaO (calciumoxide), Ca3P2 (calcium phosphide), CaS (calcium sulfide), Ca3N2 (calcium nitride), SiC (silicon carbide), etc...
a high yield (90%) ethylene oxide can be produced by treating calciumoxide with ethyl hypochlorite; substituting calcium by other alkaline earth metals...
It is one of a group of compounds that can be produced by reacting calciumoxide and silica in various ratios e.g. 3CaO·SiO2, alite (Ca3SiO5); 2CaO·SiO2...
magnesium oxide. Inhalation of magnesium oxide fumes can cause metal fume fever. Calciumoxide – Chemical compound of calcium Barium oxide – Chemical...
by ancient Romans who used volcanic ash (pozzolana) with added lime (calciumoxide). Non-hydraulic cement (less common) does not set in wet conditions...
It is produced by the reaction of calciumoxide, calcium carbonate with hydrobromic acid or the reaction of calcium metal with elemental bromine. It adopts...
limestone (calcium carbonate) through combustion to yield calciumoxide (quicklime). This calcination reaction is CaCO3(s) → CaO(s) + CO2(g). Calciumoxide is...
metal oxides arise by decomposition of other metal compounds, e.g. carbonates, hydroxides, and nitrates. In the making of calciumoxide, calcium carbonate...
fed by oxygen and hydrogen is directed at a cylinder of quicklime (calciumoxide), which can be heated to 2,572 °C (4,662 °F) before melting. The light...
fruit Lime (material), inorganic materials containing calcium, usually calciumoxide or calcium hydroxide Lime (color), a color between yellow and green...
manufactured glass contains around 15% sodium oxide, 70% silica (silicon dioxide), and 9% lime (calciumoxide). The sodium carbonate "soda" serves as a flux...
intercalation hosts proposed transition metal oxides and sulfides. The study of calcium batteries as well as calcium electro-chemistry continued. Research expanded...
ash, calciumoxide, and salt is included in the plastering mixture, thereby increasing its pH and sodium content. The addition of calciumoxide and wood...
and its oxide form (MO) to separate carbon dioxide from other gases coming from either power generation or an industrial plant. In the calcium looping...
the presence of calciumoxide or calcium carbonate, which, directly or indirectly, bind sulfur dioxide and some oxygen to give calcium sulfite. The net...
inorganic phosphate anions. Some so-called calcium phosphates contain oxide and hydroxide as well. Calcium phosphates are white solids of nutritional...
better suited as an aggregate. It may also have higher free calciumoxide and magnesium oxide content, which are often converted to its hydrated forms if...
example lead as lead oxide. Boron is considered by many to be a glass former rather than a flux. Some oxides, such as calciumoxide, flux significantly...
Calcium aluminates are a range of materials obtained by heating calciumoxide and aluminium oxide together at high temperatures. They are encountered...
strontium oxide and calciumoxide. Another standard formulation is barium oxide, calciumoxide, and aluminium oxide in a 5:3:2 ratio. Thorium oxide may be...
foodstuffs. It is a white waxy powder. Calcium stearate is produced by heating stearic acid and calciumoxide: 2 C17H35COOH + CaO → (C17H35COO)2Ca + H2O...
stable at ordinary temperatures; typically this is either yttrium or calciumoxide, the amount of stabilizer used depending on the many recipes of individual...
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