Assertion: phosphoric acid | /r/ObjectUse | used for rust removal
Facets:
value: commonly
type: TEMPORAL
value: among the various types of acids
type: OTHER
Source sentences:
text: Phosphoric acid is commonly used for rust removal.
text: Phosphoric acid used in the removal of rust
text: Among the various types of acids, phosphoric acid is used commonly in the removal of rust from metals like iron, steel, etc.