銅電解精製の添加剤に関する研究 (第1報)

膠および塩酸添加の効果について

抄録

We have investigated the effect of addition agents by measuring the cathode polarization using Haring Cell, and have got results as follows.
(1) The diminution of gelatine in electrolyte was caused by hydrolysis and electric adsorption of geoatine, and the latter was more remarkable in the case of practical refining.
(2) During electrodeposition of copper at above 1.5A/dm, the slopes of DK-E curves were smaller in case of electrolytes containing both gelatine and hydrochloric acid than in case of that containing gelatine alone. The addition of both gelatine and hydrochloric acid increased “throwing power” of copper electrolytes.