Assertion: hydrogen fluoride's fluorine | /r/HasProperty | corrosive
Facets:
value: extremely
type: DEGREE
Source sentences:
text: Lithium and fluorine are both extremely corrosive, lithium ignites on contact with air, fluorine ignites on contact with most fuels, including hydrogen.
text: Fluorine is a corrosive pale yellow gas.
text: Fluorine is highly toxic and corrosive.