Assertion: perchloric acid | /r/HasProperty | useful
Facets:
value: in preparing perchloric salts
type: TEMPORAL
value: in etching of chrome
type: LOCATION
value: for preparing perchlorate salts
type: PURPOSE
Source sentences:
text: Perchloric acid is useful for preparing perchlorate salts, especially ammonium perchlorate, an important rocket fuel component.
text: Additionally it is a useful component in etching of chrome
text: Perchloric acid is a strong mineral acid that is useful in preparing perchloric salts.