Assertion: celf lignin | /r/HasAspect | a point of zero charge
Facets:
value: around 4.5
type: TEMPORAL
Source sentences:
text: The aminated CELF lignin has a point of zero charge (pH) around 4.5, and its magnitude of zeta potential at each tested pH value (−2 to −25 mV) is significantly lower than that of the unmodified CELF lignin ranging from −68 to −75 mV ( Figure 8 ).