Page 29 - Introduction to Colloid and Surface Chemistry
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20  The colloidal state
        screens  supporting  the  membranes  speeds  up the  migration  of small
        ions  to  the  membrane  surface  prior  to  their  diffusion  to  the  outer
        liquid. The accompanying concentration  of charged colloidal particles  at
        one  side  and,  if  they  sediment  significantly,  at  the  bottom  of  the
        middle compartment  is termed  electrodecantation.
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