Assertion: calcium carbide | /r/ObjectUse | used as raw material
Facets:
value: for a long time
type: TEMPORAL
value: for producing lime nitrogen
type: PURPOSE
value: in the heavy chemical industry
type: LOCATION
Source sentences:
text: Calcium carbide is used as a raw material in the production of a wide variety of chemicals, including acetylene and its derivatives such as acrylic fibers, resins, and polymers, etc.
text: Calcium carbide has been manufactured since the turn of the century and has been used as raw material in the heavy chemical industry for a long time, e.g. for producing lime nitrogen and PVC.
text: Calcium carbide has been manufactured since the turn of the century and has been used as raw material in the heavy chemical industry for a long time, e.g. for producing lime nitrogen and PVC.