高碘酸钾法和过硫酸铵银盐法测定钢铁中的锰是公认的,前者已被ISO采纳为国际标准。至于过硫酸铵银盐法,虽被广泛应用,却存在一些问题,尤其是贵金属——银的消耗。高碘酸钾法虽不用银盐,但高碘酸钾价格较贵,用于一般钢中锰的测定,也不经济。为此,研究了直接氧化法。 Potassium periodate and ammonium persulfate silver determination of manganese in steel is recognized, the former has been ISO adopted as an international standard. As ammonium persulfate silver method, although widely used, but there are some problems, especially precious metal - silver consumption. Although the potassium periodate method does not use silver salt, potassium periodate is more expensive and is not economical for the determination of manganese in general steel. To this end, the direct oxidation method was studied.