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| 搅拌时间对水合碳酸镁形貌和组成的影响 | |
| 引用本文： | 郑亚君,党利琴,张智平,雷志斌,陈吉平.搅拌时间对水合碳酸镁形貌和组成的影响[J].精细化工,2007,24(9):835-838,869. |
| 作者姓名： | 郑亚君 党利琴 张智平 雷志斌 陈吉平 |
| 作者单位： | 1. 辽宁师范大学,功能材料化学研究所,辽宁,大连,116029;中国科学院,大连化学物理研究所,辽宁,大连,116023 2. 辽宁师范大学,功能材料化学研究所,辽宁,大连,116029 3. 中国科学院,大连化学物理研究所,辽宁,大连,116023 |
| 基金项目： | 国家自然科学基金 , 国家重点基础研究发展计划(973计划) |
| 摘 要： | 通过共沉淀法,研究了Mg(NO3)2.6H2O和K2CO3生成水合碳酸镁的形貌和组成随反应初始溶液搅拌时间的变化规律。结果发现,当反应初始溶液的搅拌时间在1~8 min变化时,可使产物针状水合碳酸镁的直径控制在0.5~23μm,长度介于2~200μm;通过对产物组成的红外光谱和热重分析,发现当搅拌时间在1~20 min变化时,所得产物MgCO3.xH2O(1 |
| 关 键 词： | 水合碳酸镁 搅拌时间 形貌 组成 功能材料 |
| 文章编号： | 1003-5214（2007）09-0835-05 |
| 修稿时间： | 2007-01-082007-02-06 |
Influence of Stirring Time on the Morphology and Composition of Magnesium Carbonate Hydrates |
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| ZHENG Ya-jun,DANG Li-qin,ZHANG Zhi-ping,LEI Zhi-bin,CHEN Ji-ping.Influence of Stirring Time on the Morphology and Composition of Magnesium Carbonate Hydrates[J].Fine Chemicals,2007,24(9):835-838,869. | |
| Authors: | ZHENG Ya-jun DANG Li-qin ZHANG Zhi-ping LEI Zhi-bin CHEN Ji-ping |
| Affiliation: | Institute of Chemistry for Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China ; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China |
| Abstract: | Magnesium carbonate hydrates were facilely synthesized by the precipitation of Mg(NO3)2·6H2O and K2CO3in aqueous solutions,and their morphologies and compositions were characterized by SEM,FTIR spectroscopy and TGA.SEM observation demonstrates that the needlelike magnesium carbonate hydrates with variable sizes,ranging from 0.5 to 23 μm in diameter and 2 to 200 μm in length,can be synthesized by adjusting carefully the stirring time of the initial reaction solution in the range of 1～8 min.IR and TG analyses indicate that the stirring time has a significant effect on the content of water of magnesium carbonate hydrates besides their morphologies,and the corresponding composition has a simple formula of MgCO3·xH2O,in which the value of x is between 1～3 with the variety of stirring time from 1 to 20 min. |
| Keywords: | magnesium carbonate hydrate stirring time morphology composition funcational materials |
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