Model Suspensions of Aqueous Polystyrene Latex

The sedimentation rate is a complex function of the volume fraction (f . This was tested using polystyrene (PS) latex suspensions with radius J =1.55 im in 10-3 moldm-3 NaCl [2]. 

It may be pos sible to correlate the change in the rate of sedimentation with increasing cp with the viscosity of the suspension, as predicted by the Dougherty-Krieger equation [3], 

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