Assertion: calcium oxide | /r/HasProperty | produced
Facets:
value: from quarried limestone
type: OTHER
value: by heating it
type: MANNER
Source sentences:
text: Calcium oxide is produced by heating calcium carbonate to 2000 degrees F where carbon dioxide disassociates as a gas from the calcium carbonate:
text: Lime is produced from limestone, a naturally occurring material in nature.
text: Quicklime is produced by heating limestone as shown in the following equation:
text: The calcium oxide, with that traditional name of lime, is produced from quarried limestone by heating it in a kiln to more than 825°C, which gives off carbon dioxide from the calcium carbonate that is the prime constituent of the rock, leaving the oxide.
text: Calcium oxide (lime) is produced when limestone is calcined to drive off carbon dioxide.
text: The deposits of 100% pure calcium carbonate are rare, so non-lime components are a normal part of lime that is produced from quarried limestone and is frequently referred to as "grit".