| 电生溴库仑滴定法直接测定渣油中硫醚硫的研究 |
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| 引用本文： | 刘文钦 王宗贤. 电生溴库仑滴定法直接测定渣油中硫醚硫的研究[J]. 分析试验室, 1995, 14(6): 71-73 |
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| 作者姓名： | 刘文钦 王宗贤 |
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| 作者单位： | 石油大学炼制系 |
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| 摘 要： | 本文提出了在甲苯－冰乙酸－乙醇－ＮａＢｒ电解液中电生溴库仑滴定电位法指示终点直接测定渣油中硫醚硫的新方法。该电解液对渣油样溶解性能好，终点电位突跃大，结果准确。
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| 关 键 词： | 硫醚 硫 渣油 库仑滴定 |
Studies of Coulometric Titrations of Sulfoethers in Residual Oil with Electrogen-erated Bromine |
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| Liu Wenqin, Wang Zongxi-an and Li Xifang,. Studies of Coulometric Titrations of Sulfoethers in Residual Oil with Electrogen-erated Bromine[J]. Chinese Journal of Analysis Laboratory, 1995, 14(6): 71-73 |
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| Authors: | Liu Wenqin Wang Zongxi-an Li Xifang |
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| Abstract: | new method of coulometric titrationof sulfoethers in residual oil with generatedbromine in the electrolysis system oftoluene-glacial acetic acid-ethanol-NaBr wasstudied,The proposed method has advan-tages of excellent solubility of residual oilsample,large potential jump, good precisionand high accuracy.The standard deviation is1ess than 0.04%and the RSD is less than5%with a 0.5%sulfoether content in resid-ual oil. The results agree with those of po-tentiometric titration using Pb(Ac)_4 or KIO_3as titrant. |
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| Keywords: | Sulfoether determination residual oil coulometric titration |
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