Assertion: lignin's purity | /r/CapableOf | use ionic liquids
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Source sentences:
text: Purity of 91.2% was obtained from raw material using the ionic liquids, whereas organosolv lignin purity ranged from 85.7% to 90.9% and soda lignin from 12.9% to 89.6% after treatment with [BMIM][MeSO 4 ].