Assertion: hydrogen fluoride | /r/ObjectUse | used as cracking catalyst
Facets:
value: in oil refineries
type: LOCATION
value: for enamel
type: PURPOSE
value: in separating uranium isotopes
type: TEMPORAL
value: for etching glass
type: PURPOSE
Source sentences:
text: Hydrogen fluoride is used in separating uranium isotopes, as a cracking catalyst in oil refineries, and for etching glass and enamel, removing rust, and cleaning brass and crystal.