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 。
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.
出处
《无机盐工业》
CAS
2002年第3期41-42,共2页
Inorganic Chemicals Industry
