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镧铈金属及其化合物化学分析方法 第1部分:铈量的测定 硫酸亚铁铵滴定法 Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1: Determination of cerium content—Ammonium ferrous sulfate titration method
发布日期: 2021-10-11
实施日期: 2022-05-01
本文件规定了镧铈金属及其化合物中铈含量的测定方法。 本文件适用于镧铈金属中铈含量的测定,以及氧化镧铈、碳酸镧铈、氯化镧铈中氧化销量的测定,测定范围见表 1。 表 1 测定范围 试料 测定范围(质量分数)% 镧铈金属 55.00~85.00 氧化镧铈 55.00~85.00 碳酸镧铈 25.00~50.00 氯化镧铈 20.00~45.00 注:镧铈金属的测定范围为铈的质量分数,氧化镧铈、碳酸镧铈和氯化镧铈的测定范围为氧化铈的质量分数
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