For the 15 and 25% ChCl
DESs, the viscosity measurements were well within the measurement
error (approximately 5%) of the literature values for DESs prepared
with clean glycerol. However, for the 5 and 35% ChCl DESs, the viscosities
with waste glycerol were, on average, approximately 25% different
than the literature values (while still retaining the trend of decreasing
viscosity with increasing ChCl)