Assertion: rust | /r/HasProperty | removed with chelating agents
Facets:
value: as in some commercial formulations
type: OTHER
Source sentences:
text: Rust may be treated with commercial products known as rust converter which contain tannic acid or phosphoric acid which combines with rust; removed with organic acids like citric acid and vinegar or the stronger hydrochloric acid; or removed with chelating agents as in some commercial formulations or even a solution of molasses.