Assertion: hydrogen fluoride | /r/CapableOf | use circulating fluosilicic acid
Facets:
value: as the scrubbing liquor
type: MANNER
Source sentences:
text: The cleaned vapours are then fed to a fluorine scrubber, where the silicon tetrafluoride and hydrogen fluoride they contain are absorbed using circulating fluosilicic acid as the scrubbing liquor.