The sedimentation or floating behaviours and their volume of practical powders dispersed in water, liquid mixture of methyl alcohol and water, or methyl alcohol were measured at some time intervals.
From the experiments, the “water/methyl alcohol dispersion test method” herein specified for the assessment of the dispersability of powder were ascertained as useful technique in the practical application, like as zeta potential. Furthermore, classification of sedimentation or floating behaviours was done by visual observation of sedimentation or floating.
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