Study on the Mechanism of Liesegang Pattern Development During Carbonating of Traditional Sticky Rice-Lime Mortar
WEI Guo-feng1, 3, FANG Shi-qiang2, ZHANG Bing-jian3*, WANG Xiao-qi4, LI Zu-guang2
1. Department of History, Anhui University, Hefei 230039, China 2. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China 3. Department of Chemistry, Zhejiang University, Hangzhou 310027, China 4. Department of History, Nanjing University, Nanjing 210093, China
Abstract：Liesegang patterns in traditional sticky rice-lime mortar undergoing carbonation were investigated by means of FTIR, XRD and SEM. Results indicate that well-developed Liesegang patterns only occur in the mortar prepared with aged lime and sticky rice. The smaller Ca(OH)2 particle size in aged lime and the control of the sticky rice for the crystallization of calcium carbonate lead to the small pores in this mortar. These small pores can make Ca2+ and CO2-3 highly supersaturated, which explains the reason why Liesegang pattern developed in the sticky rice-aged lime mortar. The formed metastable aragonite proves that Liesegang pattern could be explained based on the post-nucleation theory.
魏国锋1，3，方世强2，张秉坚3*，王晓琪4，李祖光2 . 传统糯米灰浆碳化过程中Liesegang环的形成机理研究 [J]. 光谱学与光谱分析, 2012, 32(08): 2181-2184.
WEI Guo-feng1, 3, FANG Shi-qiang2, ZHANG Bing-jian3*, WANG Xiao-qi4, LI Zu-guang2 . Study on the Mechanism of Liesegang Pattern Development During Carbonating of Traditional Sticky Rice-Lime Mortar. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(08): 2181-2184.
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