Assertion: urea | /r/HasProperty | synthesized
Facets:
value: from ammonia
type: OTHER
value: from carbon dioxide
type: OTHER
value: artificially
type: MANNER
Source sentences:
text: Urea was the first natural compound to be artificially synthesized using inorganic compounds — a scientific breakthrough.
text: Here, the reliability mainly refers to the property of protecting the metal surface inside this apparatus from ammonium carbamate produced as a reaction intermediate when urea is synthesized from ammonia and carbon dioxide, having strong corrosiveness to metal.