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近年来,无氰酸性铵盐镀锌已经获得了广泛的应用.而无铵氯化物镀锌由于具有污水处理方便、对设备腐蚀较轻两个突出的优点,正有逐渐取代前者的趋势.因此,对这两类溶液中锌离子的存在形式和在电极上沉积机理的探讨,是一个有着广泛意义的课题.然而,迄今为止在许多方面并未达到一致的看法.我们试图从溶液本体的热力学平衡状态和电极表面的反应动力学两个不同角度对此进行探讨,以比较酸性铵盐镀锌溶液与无铵氯化物镀锌溶液的相同与相异之处.为此,采用了下列数种实验手段:
In recent years, cyanide-free ammonium salt zinc has been widely used.And ammonium chloride-free zinc plating due to the convenience of sewage treatment, corrosion on the equipment lighter two prominent advantages are gradually replacing the former trend. , The existence of zinc ions in these two types of solutions and the discussion of the mechanism of deposition on the electrode is a subject of general significance.However, no agreement has been reached so far in many aspects.We attempt to derive from the thermodynamics of solution bulk Equilibrium and electrode reaction kinetics at two different angles to explore this comparison to compare acidic ammonium salt zinc-free zinc chloride solution and ammonium chloride-free solution of the same and differences.To this end, the following number Experimental methods: