| 利用Fe^3＋与SCN^—的显色反应检测内燃机车冷却液中的亚硝酸钠 |
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| 引用本文： | 茹更生 李瑞英. 利用Fe^3＋与SCN^—的显色反应检测内燃机车冷却液中的亚硝酸钠[J]. 化学研究与应用, 1999, 11(4): 428-430 |
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| 作者姓名： | 茹更生 李瑞英 |
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| 作者单位： | 郑州铁路局机务处!郑州450052(茹更生)，郑州铁路分局!郑州450052(李瑞英) |
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| 摘 要： | 1 引言内燃机车冷却液中NaNO2(18～22gL)的测定是采用KMnO4容量滴定法[1]。该方法重现性差、误差大[2]。作者改用稀乙酸调节冷却液酸度,以硫脲作还原剂,在波长476nm下[3]测其吸光度可求出NaNO2的含量。2 试验21 主要仪器和试剂752C型紫外可见分光光度计。标样(NaNO2标?..
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| 关 键 词： | 检测 冷却液 亚硝酸钠 |
USING THE COLOUR REACTION OF Fe~(3 ) AND SCN~- TO DETECT SODIUM NITRITE IN COOLING LIQUID OF DIESEL LOCOMOTIVES |
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| Ru Gengshen Li Ruiying. USING THE COLOUR REACTION OF Fe~(3 ) AND SCN~- TO DETECT SODIUM NITRITE IN COOLING LIQUID OF DIESEL LOCOMOTIVES[J]. Chemical Research and Application, 1999, 11(4): 428-430 |
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| Authors: | Ru Gengshen Li Ruiying |
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| Abstract: | The colour reaction of Fe 3 and SCN - is used to detect heighly concentrated sodium nitrite in cooling liquid of diesel locomotives.Under the condition of cooling liquid,any other components never interfere in the detection. |
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| Keywords: | detect cooling liquid sodium nitrite |
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