機械的攪拌による液-液分散(第2報) : 直接顕微鏡写真法による液滴粒子の測定について

概要

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A direct microscopic photography is proposed forthe particle size determination of liquid-liquid dispersion. The apparatus consists of a cylindrical vessel (d_T=150 mm) made of clear acrylate resin and a Rushton-type impeller (d_I=49 mm). A microscopic camera was immersed directly into the agitated liquid. Water and a mixture of C_7H_<16> and carbon tetrachloride (s.g.=1.000) were used as continuous phase, and dispersed one. The photographs of the droplets were concurrently taken by the direct and indirect methods. The following results were obtained : 1) It was possible to take photographs of the droplets by the direct method as clear as those taken by the indirect method. 2) In the case of non-coalescence of the droplets, the mean diameter and particle size distribution were the same by both methods. It is, therefore, concluded that the direct method is better than the indirect one for the observation of unstable dispersions.
公益社団法人日本薬学会の論文
1971-05-25