In order to
stabilize the newly formed droplets of the disperse phase against Coalescence, emulsifiers(surface active substances,
surfactants) and stabilizers are added to the emulsion.
As Coalescence of the droplets after disruption influences the final droplet size distribution,
efficiently stabilizing emulsifiers are used to maintain the final droplet size distribution at a level that is equal to the distribution immediately after the droplet disruption in the ultrasonic dispersing zone.