Assertion: benzoic acid's purity | /r/AtLocation | excess of 98%
Facets:
Source sentences:
text: The purity of all the final products isolated, including 9-fluorenone, 6H-benzo[c]chromen-6-one, biphenyl-3-carboxylic acid, and biphenyl-4-carboxylic acid was in excess of 98%.