Assertion: lignin's purity | /r/HasProperty | 98.2%
Facets:
Source sentences:
text: It was an herbaceous lignin (purity 98.2%; M n ≈ 2700 estimated by GPC-ultraviolet (UV) analysis; total phenolic content = 3.55 mmol/g calculated by quantitative 31P nuclear magnetic resonance (NMR) analysis) obtained from a soda pulping process.