| 张筱岑,袁存光.化学通报,2014,77(11):1131-1134. |
| H2O2氧化-重量法测定氯乙酰氯生产废酸液中的SO42- |
| A Method for the Weight Determination of Sulfate anion in Acid-waste from the Production of Chloroacetyl Chloride Oxidized by Hydrogen Peroxide |
| 投稿时间：2014-01-08 修订日期：2014-05-29 |
| DOI： |
| 中文关键词: 废酸液，硫酸根，重量分析，H2O2氧化，氯乙酰氯 |
| 英文关键词:acid- waste,sulfate anion,gravimetric analysis,H2O2 oxidation,chloroacetyl chloride |
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| 中文摘要: |
| 本文研究了氯乙酰氯生产产生的废酸液中SO42-浓度的测定方法。在酸性（pH≤5.0)介质中，用过量H2O2作为氧化剂，将S2O32-和SO32-氧化为SO42-后，BaCl2沉淀重量法测总硫，根据c(SO42?)=c(总SO42?) -c(SO32?)-2c (S2O32?)关系式，计算法获得硫酸根准确含量。该方法简便、可靠，对氯乙酸氯化法工艺生产氯乙酰氯所得废酸液的分析和再利用，具有重要的应用价值。 |
| 英文摘要: |
| It deals with a method for the determination of SO42- concentration in acid-waste from the production of chloroacetyl chloride. S2O32- and SO32- in acid-waste is oxidized to SO42- by the excess of H2O2 in acidic medium (pH≤5) . The total content of sulfur compound is determined by the method of precipitation with BaCl2 . Then the content of SO42- can be calculated according to the relation of c(SO42-)=c(total SO42-)-c(SO32-)-2c(S2O32?). The method is simple and reliable. The results show that the study has reference and application value for the analysis and reuse for acid-waste produced in the production process of chloroacetyl chloride with the method of chlorine oxidation. |
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