| 交流示波极谱滴定测定水泥中的Fe_2O_3和Al_2O_3 |
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| 引用本文： | 王永红,钟国伦,张桂利,杨春霞. 交流示波极谱滴定测定水泥中的Fe_2O_3和Al_2O_3[J]. 济南大学学报(自然科学版), 1995, 0(3) |
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| 作者姓名： | 王永红 钟国伦 张桂利 杨春霞 |
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| 作者单位： | 山东建材学院应用化学系，山东大学化学院 |
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| 摘 要： | 研究了在ｐＨ＝４．３的ＨＡｃ—ＮａＡｃ缓冲溶液中，用ＥＤＴＡ滴定水泥熟料中的Ｆｅ３＋，并以Ｚｎ２＋的切口消失来指示终点，对Ｆｅ３＋进行测定，以及在测定了Ｆｅ３＋的溶液中用Ｚｎ２＋标液返滴定到出现Ｚｎ２＋切口指示终点来测定Ａｌ３＋的交流示波极谱连续测定Ｆｅ３＋和Ａｌ３＋的新方法。关键词
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| 关 键 词： | 交流示波极谱，水泥，二氧化二铁，二氧化二铝 |
DETERMINATION OF Fe_2O_3 AND Al_2O_3 IN CEMENT WITH AC OSCILLOPOLAROGRAPHIC TITRATION |
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| Wang Yonghong,Zhong Guolun ,Zhang Guili,Yang Chunxia. DETERMINATION OF Fe_2O_3 AND Al_2O_3 IN CEMENT WITH AC OSCILLOPOLAROGRAPHIC TITRATION[J]. Journal of Jinan University(Science & Technology), 1995, 0(3) |
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| Authors: | Wang Yonghong Zhong Guolun Zhang Guili Yang Chunxia |
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| Abstract: | A new method was developed for determination of Fe_2O_3 and Al_2O_3 in cement.EDTA is used to titrate Fe3+ions in solution of HAc-NaAc (PH= 4. 3). The gap of Zn2+ ions is used to indicate the end-point. The standard solution of Zn2+ is used to indicate the excessive EDTA after it is added to the solution which Fe3+ions has been titrated. The gap of Zn2+ions is also used to indicate the end-point which can caculate the quantity of Al3+. |
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| Keywords: | AC oscillopolarography titration cement ferrio oxide and aluminium oxide |
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