how is lime(CaO) formed and give its uses
Asked by ankitmadan | 14th Jun, 2008, 11:49: PM
Calcium oxide is usually made by the thermal decomposition of materials such as limestone, that contain calcium carbonate (CaCO3; mineral name: calcite) in a lime kiln. This is accomplished by heating the material to above 825°C,a process called calcination or lime-burning, to liberate a molecule of carbon dioxide (CO2); leaving CaO.
It is used in mortar and plaster to increase the rate of hardening as well as to improve adhesion.It is also used in water and sewage treatment to reduce acidity, to soften, as a flocculant, and to remove phosphates and other impurities; in agriculture to improve acidic soils; and in pollution control.
Answered by | 20th Jun, 2008, 07:57: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number