Abstract
Measurements of equilibrium contact angles in the ternary liquid system water, toluene, acetone are reported on stainless steel, glass and Teflon surfaces. These are shown to vary considerably with acetone concentration. For droplets of aqueous phase on high-energy surfaces the contact angle decreased with increasing acetone concentration until at 60% wt./wt. acetone complete wetting was observed. Similar behaviour was observed for droplets of organic phase on a Teflon surface. The results are of interest in assessing the performance of knitted meshed and packings used in extraction and separation equipment to promote coalescence and phase disengagement.
Published Version
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