main uses of quick lime
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cement : Calcium oxide is a key ingredient for the process of making cement. As a cheap and widely available alkali. About 50% of the total quicklime production is converted to calcium hydroxide before use. Both quick- and hydrated lime are used in the treatment of drinking water.
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Scientists believe quicklime, or calcium oxide, may have been used in ancient Greece as a fire source. Since quicklime can ignite fuel when coming in contact with water, it may have been used to start cooking fires. It was once used in stage lighting because when heated to over 2,400 degrees Fahrenheit, calcium oxide emits a bright glow, called a limelight.
Quicklime is also used in the petroleum industry as an alkali in biodiesel production.
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