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在氟硼酸盐溶液中,以蛋白胨为添加剂,在铅锡合金电极上用恒电流法和电位扫描法研究铅锡的阴极过程,测定了合金的极化曲线和各金属的分极化曲线。结果表明金属的沉积过程受到电荷传递步骤的控制。测得a=0.14。证实氟硼酸本身不直接参加电极反应,但反应速度常数Kf与酸浓度成正比。
In fluoroborate solution, peptone was used as additive to study the cathodic process of lead-tin by potentiostatic current and potential sweep method on the lead-tin alloy electrode. The polarization curves of the alloy and the polarization curves of the metals were measured. The results show that the metal deposition process is controlled by the charge transfer step. Measured a = 0.14. Fluoroboric acid itself was confirmed not to directly participate in the electrode reaction, but the reaction rate constant Kf is proportional to the acid concentration.