Assertion: barium sulfate | /r/ObjectUse | used as a pigment extender
Facets:
value: for rubber
type: PURPOSE
value: for plastics
type: PURPOSE
value: for chalks
type: PURPOSE
value: for coatings
type: PURPOSE
Source sentences:
text: Barium sulfate is used as a pigment extender for coatings, plastics, rubber and chalks.