Effect of EDTA and Cu on Al2O3 Particle Charge

Electrophoretic Mobility

cm2/V·s ? 10-4

? Al2O3

? Al2O3 + 184ppm EDTA

? Al2O3 + 40ppm Cu

+ 184ppm EDTA

pH

+

+

pH ? 6

+

+

+

+

+

+

+

-

-

-

-

-

-

-

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