Assertion: crude glutamic acid | /r/HasProperty | purified in the past
Facets:
value: by dissolving the crude glutamic acid
type: MANNER
Source sentences:
text: In the past such crude glutamic acid has been purified followed by dissolving the crude glutamic acid in a solution of an alkali by treatment of the nearly neutral solution with a de-colorizing agent such as activated carbon, said solutions having a pH ranging between about 5 and about 6.5 moreor-less.