Assertion: lignin's chemical composition | /r/CapableOf | depolymerized at 180 ºc
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Source sentences:
text: The chemical compositions of liquid oils obtained from alkali lignin depolymerized at 180 ºC, 240 ºC, and 300 ºC for 4 h were categorized depending on their structure and chemical functionalities, and the results are listed in Table 1.