Spatial Separation of Copper and Cobalt Oxalate by Flow-Driven Precipitation,Crystal Growth & Design

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Spatial Separation of Copper and Cobalt Oxalate by Flow-Driven Precipitation
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2017-08-25 00:00:00 , DOI: 10.1021/acs.cgd.7b01020
Eszter Tóth-Szeles ₁ , Bíborka Bohner ₁ , Ágota Tóth ₁ , Dezső Horváth ₁

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A precipitation reaction is investigated far from equilibrium by introducing a continuous flow of the homogeneous mixture of water-soluble metal salts into sodium oxalate solution. The spreading gravity current maintained by the density difference between the solutions creates a radially symmetric precipitate pattern that contains spatially separated copper oxalate monohydrate and cobalt oxalate tetrahydrate, identified by X-ray diffraction measurements. In the transition zone, a unique crystalline composite containing copper oxalate plates with cobalt oxalate coating also forms.

中文翻译：

流动驱动沉淀法分离草酸铜和草酸钴

通过将连续的水溶性金属盐均匀混合物引入草酸钠溶液中，研究了沉淀反应，使反应远离平衡状态。由溶液之间的密度差维持的分散重力流产生径向对称的沉淀图案，该沉淀图案包含空间分离的草酸铜一水合物和草酸钴四水合物，通过X射线衍射测量确定。在过渡区中，还形成了一种独特的晶体复合材料，该复合材料包含草酸铜板和草酸钴涂层。

更新日期：2017-08-26

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