| 分光光度法测定氟硅酸钠中的硫酸盐 |
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| 作者单位： | ;1.云南三环化工有限公司 |
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| 摘 要： | 研究了分光光度法测定氟硅酸中硫酸盐含量的方法。SO42-与BaCl2反应生成悬胶(浮)液沉淀物BaSO4,在440 nm波长处测量其吸光值,可以准确测定出氟硅酸钠中硫酸盐的含量。硫酸盐在10~200 mg/L范围内线性关系良好,线性相关系数为0.996,回收率为97.21%~104.75%。
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| 关 键 词： | 氟硅酸钠 硫酸盐 分光光度法 |
Spectrophotometric Determination of Sodium Sulfate in Sodium fluosilicate |
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| Affiliation: | ,Yunnan Sanhuan Chemical Co.,Ltd. |
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| Abstract: | A spectrophotometric method for the determination of sodium sulfate in sodium fluosilicate was studied. SO42-reacted with BaCl2 giving out precipitate BaSO4 as hanging( floating) gel,by measuring the absorbance at 440 nm,the sodium sulphate content in sodium fluosilicate can be accurately measured. In10 ~ 200 mg / L range,sulfate has a good linear relationship with correlation coefficient of 0. 996,and the recovery of 97. 21% ~ 104. 75%. |
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