| 工业碳酸钙主含量测定方法的比较与分析 |
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| 引用本文： | 董学芝,李桂敏,艾天召,赵海兰,宁丽霞,魏林恒.工业碳酸钙主含量测定方法的比较与分析[J].化学研究,2001,12(4):42-44. |
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| 作者姓名： | 董学芝 李桂敏 艾天召 赵海兰 宁丽霞 魏林恒 |
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| 作者单位： | 河南大学化学化工学院,开封475001 |
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| 摘 要： | 通过实验对工业碳酸钙主含量测定的两种标准方法进行了比较和分析 .结果表明 ,这两种方法的测定结果之间存在显著的系统误差 ,而且同一样品的质量等级 ,两种方法的结果可能相互矛盾
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| 关 键 词： | 工业碳酸钙 标准方法 比较与分析 |
| 文章编号： | 1008-1011(2001)04-0042-03 |
| 修稿时间： | 2000年12月26 |
Comparison and Analysis of the Methods for the Determination of Calcium Carbonate Content in Carbonate of Lime |
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| DONG Xue_zhi,LI Gui_min,AI Tian_zhao,ZHAO Hai_lan,NING Li_xia,WEI Lin_heng.Comparison and Analysis of the Methods for the Determination of Calcium Carbonate Content in Carbonate of Lime[J].Chemical Research,2001,12(4):42-44. |
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| Authors: | DONG Xue_zhi LI Gui_min AI Tian_zhao ZHAO Hai_lan NING Li_xia WEI Lin_heng |
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| Abstract: | In this paper, the two operating rules to determine calcium carbonate content in the precipitation carbonate of lime laid down by GB4794-84 and HG2226-91 were analysed and compared with experiments. The results are as follows: (1) The end point of the titration of the method laid down by GB4794-84 is not very remarkable, (2) The end point of the titration of the method laid down by HG2226-91 is very remarkable ,but the results obtained by the method are always higher than those obtained with GB4794-84 method. The reason is that the results obtained by HG2226-91 method contain CaCO 3 and other compositions which can be dissolved in hydrochloric acid . |
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| Keywords: | calcium carbonate standard method comparison and analysis |
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