本文首先实验测定了7 - ACA结晶热力学数据和粘度、密度、电离平衡常数等必要的基本物性数据。

First, the crystallization thermodynamic data and other basic physicochemical data of solution, such as viscosity, density of 7-aca solution and dissociation constants, were measured by experiments.

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硝酸硫胺的活度积常数对于控制硝酸硫胺生产过程、研究结晶过程动力学、提高产品收率具有重要的理论指导意义。

The activity product is important to control the manufacture of thiamine nitrate and to study the dynamics of crystallization process.

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XRD和TEM分析表明， 随着溶剂介电常数和极性增加， 所生成产物的物相纯度、 结晶度增高， 晶粒尺寸增大。

XRD and TEM analyses show that the phase purity, crystallization and particle sizes of synthesized powders increase with the increase of the dielectric constant and polarity of the solvent.

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