| PAC中氧化铝和盐基度的测定 |
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| 引用本文： | 杨立新 苏国钧. PAC中氧化铝和盐基度的测定[J]. 湘潭大学自然科学学报, 1994, 16(4): 41-44 |
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| 作者姓名： | 杨立新 苏国钧 |
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| 作者单位： | 湘潭大学化学系 |
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| 摘 要： | 本文研究了铝矾土经酸溶制备聚合氯化铝中溶出杂质对氧化铝和盐基度分析的影响，采用硝酸铅标准溶液返滴定ＥＤＴＡ测定氧化铝，消除了Ｃａ２＋的干扰，采用酸度计直接指示试液ｐＨ值测定盐基度，避免了杂质硅酸在氟化钾法中的副反应，实验结果准确可靠．
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| 关 键 词： | 聚合氯化铝；氧化铝；盐基度 |
DETERMINATION OF ALUMINA AND BASICITY IN THE PAC |
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| Yang Lixin,Su Guojun. DETERMINATION OF ALUMINA AND BASICITY IN THE PAC[J]. Natural Science Journal of Xiangtan University, 1994, 16(4): 41-44 |
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| Authors: | Yang Lixin Su Guojun |
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| Abstract: | In order to determine accurately alumina and basicity in the aluminium polychloride (PAC) maded from bauuite,a new analytical method is suggested in this paper. The standard titrant of Pb( NO3)2 is used to back titrate EDTA in the sample solution so as to eliminate the interference Of the foreign ion Ca2 for the determination of alumina. By means of acidity meter indicating pH valule of the solution in which basicity is determined,the side reaction caused by H2SiO3 in KF method can be escaped and the experimental results are satifactory for practical use. |
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| Keywords: | aluminium polychloride alumina basicity |
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