| 硝酸中微量氯离子测定方法探讨 |
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| 引用本文： | 宋学兰,巫倩,李艳. 硝酸中微量氯离子测定方法探讨[J]. 中氮肥, 2009, 0(1): 59-63 |
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| 作者姓名： | 宋学兰 巫倩 李艳 |
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| 作者单位： | 四川泸天化股份有限公司,四川,泸州,646300 |
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| 摘 要： | 进行了莫尔法、佛尔哈德法、硫氰酸汞分光光度法测定实际硝酸样品和标样中微量Cl^-含量的对比试验，结果表明：莫尔法不能准确测定硝酸中微量Cl^-含量，硫氰酸汞分光光度法和佛尔哈德法能准确测定硝酸中微量Cl^-含量。通过试验，还确定了硫氰酸汞分光光度法和佛尔哈德法测定硝酸中微量Cl^-含量的条件。
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| 关 键 词： | 硝酸 氯离子 莫尔法 佛尔哈德法 硫氰酸汞分光光度法 |
Discussion on Test Method for Trace Chloride Ion Determination in Nitric Acid |
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| SONG Xuelan,WU Qian,LI Yan. Discussion on Test Method for Trace Chloride Ion Determination in Nitric Acid[J]. M-Sized Nitrogenous Fertilizer Progress, 2009, 0(1): 59-63 |
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| Authors: | SONG Xuelan WU Qian LI Yan |
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| Affiliation: | ( Sichuan Lutianhua Co., Ltd, Luzhou 646300, China) |
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| Abstract: | Compare tests for trace chloride ion between actual sample and standard sample of nitric acid are conducted through Mohr method, Volhard method and mercuric thiocyanate spectrophotometry. The results show that the trace chloride ion in nitric acid can be determined by both Volhard method and mercuric thiocyanate spectrophotometry, but the result determined by Mohr method is not exact. The condition for chloride ion test by Volhard method and mercuric thiocyanate spectrophotometry is determined through examination. |
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| Keywords: | nitric acid chloride ion Mohr method Volhard method mercuric thiocyanate spectro- photometry |
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