Assertion: fluorine's property | /r/ObjectUse | used in common test
Facets:
value: for the presence of a fluoride
type: PURPOSE
Source sentences:
text: It has the property of dissolving glass, and this property is used in a common test for the presence of a fluoride; hydrofluoric acid is also used extensively in various forms of glass etching, such as the marking of divisions on thermometer tubes and the etching of designs on glassware, and in other forms of ceramic etching, such as pottery decoration.