Assertion: copper sulfate's use | /r/HasProperty | as a mordant
Facets:
value: for electroplating
type: PURPOSE
value: ago
type: TEMPORAL
value: for dyeing
type: PURPOSE
Source sentences:
text: Its principal employment is in agriculture, and, up to a generation or so ago, about its only uses in industry were as a mordant for dyeing and for electroplating.
text: Its principal employment is in agriculture, and, up to a generation or so ago, about its only uses in industry were as a mordant for dyeing and for electroplating.