Assertion: oxygen | /r/ObjectUse | used for oxidation of raw chemicals
Facets:
value: in the chemical and petrochemical industries
type: LOCATION
value: widely
type: DEGREE
Source sentences:
text: In the chemical and petrochemical industries, oxygen is widely used for oxidation of raw chemicals for recovery of nitric acid, ethylene oxide, propylene oxide, vinyl chloride and other important chemical compounds.