RATE: O F EV.\PORATIOS O F LIQL-IDS
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The percentage particle-size distribution results for the four systems studied are given in table 3. This distribution applies only to about 20 per cent of the lead monoxide v-hich remained in suspension after pouring. Severtheless, i t was sufficient to indicate the effect of the surface-active agent. SUMMARY
The effect of sulfur, lecithin, sodium dioctyl sulfosuccinate, and oleic acid upon the particle-size distribution of lead monoxide dispersed in xylene has been studied. All of these substances ivere effective in lowering the average size of t h e lead monoxide particles. REFERESC'ES (1) D.UIERELL, I-. R., GAYER,I
