| 氧化铝中二氧化硅含量测定方法的改进 |
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| 引用本文： | 王艳霞.氧化铝中二氧化硅含量测定方法的改进[J].无机盐工业,2002,34(3):41-42. |
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| 作者姓名： | 王艳霞 |
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| 作者单位： | 天津化工研究设计院,天津,300131 |
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| 摘 要： | 介绍了用钼蓝分光光度法测定氧化铝中二氧化硅的含量，在硝酸介质中硅与钼酸盐形成硅钼杂多酸，用抗坏血酸为还原剂，在810nm处测定，本方法测定结果准确，且重现性和稳定性均优于现行标准。
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| 关 键 词： | 氧化铝 二氧化硅 含量 测定方法 分光光度法 |
| 文章编号： | 1006-4990(2002)03-0041-02 |
| 修稿时间： | 2001年11月28 |
The improvement of determining silicon dioxide in aluminium oxide |
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| WANG Yanxia.The improvement of determining silicon dioxide in aluminium oxide[J].Inorganic Chemicals Industry,2002,34(3):41-42. |
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| Authors: | WANG Yanxia |
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| Abstract: | The determination of the content of silicon dioxide in aluminium oxide by molybdenum-blue spectrophotometry is described in this article.Silicate is complexed by molybdate salt and reforms silicomolybdic heteropoly acid in nitric acid medium.The complex is reduced by lascorbic acid and measured at the wavelength of 810 nm.With this method,the result is more accurate,the reproducibility and stability are better than the methods prescribed in relative standards. |
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| Keywords: | silicon dioxide spectrophotometry determination |
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