Conductivities in Emulsions

The dependence of the conductivity of water‐propylenecarbonate emulsions on volume fraction of the dispersed phase, on the conductivities of the continuous phase , and of the discontinuous phase , has been measured in the ranges of and . The results indicate that when neither Maxwell's equation nor Bruggemann's approximation represents the behavior of data satisfactorily. In an attempt to take into account the interaction of fields around particles of the dispersed phase, a simple approximation is proposed, based on Maxwell's equation. In the range of conductivities investigated in the present study the new equation represents the conductivity of emulsions with reasonable accuracy.