Assertion: oxalic acid | /r/HasAspect | removed
Facets:
value: by recrystallization method
type: MANNER
Source sentences:
text: Most commercially used oxalic acid has the contamination of sulfuric acid and alkali and here the alkali cannot be removed by recrystallization method using water, but the removal can be done by the method of recrystallization using 10 - 15% hydrochloric acid.