Assertion: hydrogen fluoride's amount | /r/CapableOf | act as catalyst
Facets:
value: sometimes violently
type: MANNER
value: into water and nascent oxygen
type: TRANSITIVE-OBJECT
Source sentences:
text: Even small amounts of impurities (such as iron or copper), however, act as catalysts that increase its tendency to decompose, sometimes violently, into water and nascent oxygen (O).