文献类型：会议论文

英文题名：Metastable zone width of SrCl2?6H2O during cooling crystallization

作者：Qian, Yuanyuan[1];Lu, Guimin[1];Sun, Yuzhu[1];Song, Xingfu[1];Yu, Jianguo[1]

机构：[1]E China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake R, Shanghai 200237, Peoples R China

会议论文集：21st Annual Meeting of the German-Crystallographic-Society

会议日期：MAR 19-22, 2013

会议地点：Freiberg, GERMANY

语种：英文

外文关键词：metastable zone width; cooling crystallization; strontium hexahydrate; FBRM

摘要：The metastable zone width (MSZW) of SrCl2 center dot 6H(2)O during cooling crystallization was determined by the focused beam reflectance measurement (FBRM). The effects of the saturation temperature, cooling rate, stirring rate, and Ca2+ ion impurity on the MSZW were investigated. The MSZW increased with the increase in the cooling rate and decreased with the increase in the saturation temperature, stirring rate, and Ca2+ ion concentration. Moreover, the effect of seed crystals on the MSZW was investigated, where two types of seeds were used, namely, seed 1# and 2# with volume mean crystal sizes of 64 and 218 mu m, respectively. The seeded MSZW decreased than the unseeded one. The MSZW of seed 1# was greater than that of seed 2# when the same amount of seed was used. The MSZW of seed 1# increased with the increase in the seed loading, whereas that of seed 2# decreased.