Effect of the mixing time

The particle size distributions are presented in Fig. 6.9 as a function of the mixing time [166]. At least 2 h mixing time was thus required under the experimental conditions specified to realize a steady-state condition. 

In the material system (0.5 octane+ 0.5 CCI4 0.8 anisole+ 0.2 CCI4 chloro-benzene/water (p = 0.05) a steady-state condition had still not been achieved after 30 min [392]. In the material system trichloroethane/water = 0.2) it took 2 h [166]. 

Finally the studies [314, 392] should be mentioned, which also deal with the effect of mixing time on the droplet size distribution. Logarithmic cumulative volume distributions were presented as a function of droplet volume for different mixing times, was made so small, that the mixing time only caused parallel shifts of the distribution curves (without changing the slope) this confirmed, that the disintegration process did not change with time. 

---