| 铝镁钙铁合金中铝测定方法的实验研究 |
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| 引用本文： | 刘伟,初珍珠,蒋薇. 铝镁钙铁合金中铝测定方法的实验研究[J]. 山东冶金, 2011, 0(5): 118-119 |
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| 作者姓名： | 刘伟 初珍珠 蒋薇 |
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| 作者单位： | 济钢集团有限公司科技质量部; |
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| 摘 要： | 采用稀盐酸溶样,硝酸氧化,强碱分离,EDTA络合,以氟化物取代,铅标准溶液返滴定的方法,在缓冲溶液的pH值为5.5时,测定了铝镁钙铁合金中的铝。该方法操作简单,回收率99.4%～100.4%,相对标准偏差≤0.15%。
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| 关 键 词： | 铝镁钙铁合金 铝 硝酸铅 滴定 |
Measurement Method Experiments of the Aluminum in Aluminum-magnesium-calcium Ferroalloy |
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| LIU Wei,CHU Zhen-zhu,JIANG Wei. Measurement Method Experiments of the Aluminum in Aluminum-magnesium-calcium Ferroalloy[J]. Shandong Metallurgy, 2011, 0(5): 118-119 |
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| Authors: | LIU Wei CHU Zhen-zhu JIANG Wei |
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| Affiliation: | LIU Wei,CHU Zhen-zhu,JIANG Wei(The Science and Technology Quality Department of Jinan Iron and Steel Group Corporation,Jinan 250101,China) |
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| Abstract: | Samples were dissolved by sparse hydrochloric acid,were oxidized by nitric acid,and were separated by strong alkali,by EDTA complex,by fluoride alternating and by lead standard solution back titration. When the pH value of the buffer solution was 5.5,the aluminum content in aluminum-magnesium-calcium ferroalloy was determined. The method was simple. The recovery ratios werebetween 99.4% and 100.4% and the relative standard deviation was less than 0.15%. |
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| Keywords: | aluminum-magnesium-calcium ferroalloy aluminum nitric acid lead titration |
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