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研究马来酸氢十四酯(THM)在以苯为溶剂的过饱和溶液中的成核过程,测定了以成核诱导时间表示的成核速率,分析不同温度下过饱和度对其诱导期的影响,并根据经典成核理论计算了固~液表面张力、临界成核自由能和临界成核半径.结果认为,低温度区间范围有利于THM单晶的生长. 相似文献
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研究了10℃、20℃铵光卤石过饱和溶液的结晶动力学规律.利用10℃、20℃的溶解度和动力学参数建立了铵光卤石结晶动力学方程.10℃、20℃结晶的动力学方程分别-dc/dt dc=0.045(3.276-c)~(4/3)(c-2.457),-dc/dt=0.028(4.736-c)~(4/3)(c-3.552),动力学方程证明铵光卤石的低温结晶受单核结晶生长控制. 相似文献
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ZHAOLijun ZHANGYunhong WANGLiangyu CHENGHua 《科学通报(英文版)》2004,49(16):1699-1701
The continuous sampling FTIR/AFT (aerosol flow tube) has been constructed in the present work, leading to the in situ observation of the supersaturated solutions of MgSO4 and NaCIO4 aerosols. The observation suggests that the MgSO4 aerosol show serious mass transfer limitation at low RH (relative humidity), while the NaCIO4 aerosol deliquesce without notable effect of kinetic factors. It is also shown that the v3 band of SO4^2- is very sensitive to the formation of contact ion pairs in the supersaturated solutions of MgSO4 aerosol. 相似文献
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