Emulsification with ultrasonic waves. I. Evaluation of the minisonic and a modified analysis procedure.

Abstract

A modified photomicrography procedure has been developed to speed the size-frequency method of analyzing emulsions. This method employs a film strip and rule simultaneously projected. Classification of 1,000 oil globules into the proper size intervals can be done in about one-half of the time formerly required. The Minisonic homogenizer was investigated for ( a ) the effect of long insonation periods on emulsions and ( b ) various methods of manufacturing the emulsion. No coagulation of emulsions occurred when exposed to ultrasonic waves for thirty minutes.