Assertion: hydrogen fluoride's use | /r/HasProperty | as precursor
Facets:
value: to organofluorine compounds
type: TRANSITIVE-OBJECT
value: to a precursor
type: OTHER
Source sentences:
text: Its main uses, on a tonnage basis, are as a precursor to organofluorine compounds and a precursor to cryolite for the electrolysis of aluminium.