| 氧化还原滴定法的终点误差 |
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| 引用本文： | 高尚芬.氧化还原滴定法的终点误差[J].达县师范高等专科学校学报,2004,14(2):41-42. |
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| 作者姓名： | 高尚芬 |
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| 作者单位： | 达县师范高等专科学校化学系 四川达州635000 |
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| 摘 要： | 根据滴定终点与化学计量点不一致而导致终点误差这一原理,推导出氧化还原滴定的终点误差公式.并根据此公式分别计算了用K2Cr2O7滴定Fe2 以二苯胺磺酸钠作指示剂时加入H3PO4和不加入H3PO4的终点误差,用具体数据说明加入H3PO4后可减小此滴定的终点误差.
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| 关 键 词： | 氧化还原 滴定 终点误差 |
| 文章编号： | 1008-4886(2004)02-0041-02 |
| 修稿时间： | 2003年11月16 |
Final Error in the Oxidant Reduction Titration |
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| GAO Shang-fen.Final Error in the Oxidant Reduction Titration[J].Journal of Daxian Teachers College,2004,14(2):41-42. |
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| Authors: | GAO Shang-fen |
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| Abstract: | The formula of final error in the oxidant reduction titration is deduced according to the principle that the inconsistency of titrating final and chemical calculating point leads to the final error. Based upon it, the final errors of titrating K_2Cr_2O_7 into Fe~(2 ) are calculated with adding H_3PO_4 or not, through the indicator and in detail explain the probability of minor final error for the addition of H_3PO_4. |
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| Keywords: | oxidant reduction titration final error |
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