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采用氟离子电极法,在pH值一定的情况下,通过测定氟电位,测得AIF3在水中的溶解度,得出了AIF3在溶解度范围内的线性关系,根据得出的AIF3溶解的线性关系,测得了电解质中的AIF3含量,从而得到了电解质的分子比。结果表明,此法快速、简便、准确,可用于铝电解生产中分子比的直接测定。
The fluoride ion electrode method was used to determine the solubility of AIF3 in water under the condition of constant pH value. The linear relationship of AIF3 solubility in water was obtained. According to the linear relationship of AIF3 dissolution, AIF3 in the electrolyte was obtained, and the molecular ratio of the electrolyte was obtained. The results show that this method is rapid, simple and accurate and can be used for the direct determination of molecular ratio in the production of aluminum electrolysis.