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The combined effects of supersaturation and Ba 2+ on the batch cooling crystallization of potassium dihydrogen phosphate
Author(s) -
Zheng Guozong,
Liang Jingkui,
Li Zhengdong,
Su Genbo,
Zhuang Xinxin
Publication year - 2008
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200711065
Subject(s) - supersaturation , crystallization , potassium , chemistry , ion , impurity , phosphate , adsorption , suspension (topology) , crystallography , analytical chemistry (journal) , inorganic chemistry , chromatography , organic chemistry , mathematics , homotopy , pure mathematics
The combined effects of supersaturation and Ba 2+ on potassium dihydrogen phosphate (KDP) were investigated in batch cooling suspension crystallization. Growth size, morphology, and impurity Ba 2+ adsorbed in the KDP crystals were measured with changing Ba 2+ concentration and supersaturation. Significant changes in shapes and volume of the grown crystals have been observed. The results further confirmed that the size and shape of crystals were greatly determined by supersaturation. Ba 2+ ions significantly modified the growth habit of KDP crystals. The concentration of Ba 2+ ions adsorbed in the crystals increases with the increasing Ba 2+ ions in the solutions and supersaturation. The foggy phenomena caused by the addition of Ba to the KDP solution were also described. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)