| 新型催化剂在容量法测铬中的应用 |
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| 引用本文： | 郑鸿钧. 新型催化剂在容量法测铬中的应用[J]. 分析测试学报, 1988, 0(3) |
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| 作者姓名： | 郑鸿钧 |
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| 作者单位： | 上海冶金机械总厂 |
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| 摘 要： | 过硫酸铵银盐法测定钢中铬是经典分析方法,此法需加少量银盐作催化剂,以加快反应速度,但银是贵金属,其使用受严格控制。根据文献,本实验选择硫酸钴、硫酸镍作试验,实验表明,只要在适当的酸度下,该二种物质均能起催化作用,使过硫酸铵能定量地把铬氧化为六价。方法可测含铬30%的高合金钢。
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Application of the New Catalytic Agent in the Determination of Chrome with Volymetry |
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| Zheng HongJun Sh?nghai Metallugical Machinery Head Factory. Application of the New Catalytic Agent in the Determination of Chrome with Volymetry[J]. Journal of Instrumental Analysis, 1988, 0(3) |
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| Authors: | Zheng HongJun Sh?nghai Metallugical Machinery Head Factory |
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| Affiliation: | Zheng HongJun Sh?nghai Metallugical Machinery Head Factory |
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| Abstract: | Some silver oxide must be added as catalyst to accelerate the reaction. Its supply is limitedbecause the cost of silver oxide is expensive. Nickel sulfate or cobalt sulfate is chosen as sub-stitute catalyst. With this method, high alloy steel with 30% chrome can be measured. |
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| Keywords: | Sultate or cobalt sulfate catalyst |
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