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利用高锰酸盐的色泽测定锰是最普遍的光度法。而以高碘酸盐作氧化剂的光度法所得结果此较准确、可靠。用高碘酸盐将Mn(Ⅱ)氧化为Mn(ⅤⅡ)的动力学研究证明,在溶液中存着不同氧化程度的中间产物—Mn(Ⅲ)和Mn(Ⅳ),其中Mn(Ⅳ).是动力惰性的,必须加热才能促进反应速度;但在络合剂存在下以及酸度不高时,用高碘酸盐能使Mn(Ⅱ)完全快速地氧化为Mn(ⅤⅡ)。为此,本文研
Manganese is the most common spectrophotometric method for determining the color of permanganate. The periodate photochemical method for the oxidant results obtained more accurate and reliable. Kinetic studies on oxidation of Mn (Ⅱ) to Mn (Ⅴ Ⅱ) with periodate show that Mn (Ⅲ) and Mn (Ⅳ) with different degrees of oxidation exist in the solution, with Mn (Ⅳ). Is kinetic inert and must be heated in order to promote the reaction rate; but in the presence of complexing agent and the acidity is not high, with periodate can make Mn (Ⅱ) completely oxidized to Mn (Ⅴ Ⅱ). To this end, this article research