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提出了采用铝加铁混合还原剂还原,三氯化钛存在下碘酸钾滴定法测定锡的绝对测量方法,研究了三氯化钛抑制氧的作用效果及作用机理。应用于巴氏合金中锡含量的测定,方法简便、快速,结果准确可靠。
An absolute measurement method for the determination of tin by potassium iodate titration in the presence of titanium trichloride is proposed. The effect of reducing the oxygen by titanium trichloride and the mechanism of action are studied. The method is applied to the determination of tin content in pasteurized alloy. The method is simple, rapid and the result is accurate and reliable.