Assertion: oxalic acid | /r/HasProperty | useful
Facets:
value: in various hydrometallurgical processes
type: LOCATION
value: for cleaning rust stains
type: PURPOSE
value: especially
type: DEGREE
Source sentences:
text: At some point, you may have to use oxalic acid for a cleaning project in your home (it is especially useful for cleaning rust stains out of concrete).
text: Oxalic acid is now considered as a useful chemical in various hydrometallurgical processes.
text: Oxalic acid and oxalates are useful as reducing agents for photography, bleaching, and rust removal.