2.2.2.5. pH. The effect of pH on 10%MWPsuspensions (non-homogenized
and homogenized) was examined. This MWP concentration was
selected because it had the greatest impact on the rheological and
optical properties of the systems. The MWP systems were divided
into a number of aliquots that were adjusted to different pH values
(2, 3, 4, 5, 6, 7 and 8). All systemswere stored for 24 h at roomtemperature
before analysis. The pH of the samples was re-adjusted after
24 h if required.