硫酸铯/乙醇双水相体系的相平衡

采用自制的相平衡研究装置，测定了硫酸铯/乙醇双水相体系在0、10、20和40 ℃四个温度下的等温平衡溶解度，并且获得了醇相溶液和水相溶液的折光率数据，发现温度对该体系的液-液和固-液相平衡均没有显著影响.利用“湿渣结线法”确定出四个温度下平衡固相均为无水盐，同时给出了该体系的完整相图，在相图中观察到五个相区，为该体系的进一步应用研究提供了参考数据.     

水热特性对MgO·3B2O3-18%MgSO4-H2O过饱和溶液析出固相的影响

The supersaturated solution of MgO·3B₂O₃-18%MgSO₄-H₂O was prepared and then reacted under hy-drothermal condition at 120℃. The solid phases of the different time were identified by means of chemical analysis, XRD, FT-IR, SEM. The results show that the solid phases are spherical and sheet szaibelyite, which is different from those of non-hydrothermal condition. On these grounds we suggested the crystallization mechanism of sza-ibelyite under the hydrothermal condition and then discussed the effects of hydrothermal properties on the crystal-lization mechanism.     

CsCl-C2H5OH-H2O三元体系多温下平衡溶解度的研究

采用自制微型平衡溶解度测定装置,测定了CsCl-C₂H₅OH-H₂O三元体系全温度范围内的平衡溶解度,绘制成相应的相图.首次报道氯化铯在乙醇水混合溶剂中于30,40和50℃时的分层现象,通过实验得到氯化铯在乙醇水混合溶剂中的分层温度.用Schreinemarkers"湿渣结线法"确定实验温度范围的平衡固相为无水CsCl.     

CsNO3-C2H5OH-H2O三元体系在不同温度时的平衡溶解度及相关性

硝酸铯;相平衡;CsNO3-C2H5OH-H2O三元体系在不同温度时的平衡溶解度及相关性     

Pitzer混合参数对HCl-KCl-H20体系25℃时溶解度预测的影响

The solubility variation of the phase system HC1-KC1-H2O at 25 C is reported when θHk(interactions between two species with the same charge) and ψmcl(interactions among three species)are changed within±10%. The calculated results indicate that the interactions among the three species are much stronger than that between the two species, whereas the combination of the two kinds of interactions result in great changes of the solubility of the system. This results is important for the salting out technology of the water-salt system.     

Pitzer混合参数对HCl-KCl-H2O体系25 ℃时溶解度预测的影响

Pitzer混合参数对HCl-KCl-H2O体系25 ℃时溶解度预测的影响     

[Cs(NTO)(H_2O)]配合物的合成及表征

本文首次用碳酸铯与NTO直接合成新的Cs NTO配合物。采用元素分析和化学分析法确定了配合物的组成。用红外光谱法 ,热分析法和X ray粉末衍射法进行了物理化学表征     

盐卤硼酸盐化学ⅩⅩⅨ-MgO·2B2O3-18%MgCl2-H2O过饱和溶液结晶动力学

对MgO·2B2O3-18%MgCl2-H2O过饱和溶液在不同温度条件下的结晶动力学过程进行测定,给出结晶动力学方程.析出固相采用X-射线粉末衍射、红外光谱和热分析进行物相鉴定.提出使用结晶法合成章氏硼镁石的新方法.     

盐卤硼酸盐化学——Ⅺ.不同含硼浓缩盐卤的稀释实验

In this paper, we have studied on the behaviour of borate during dilution of different boron-containing concentrated brines in which the boron-concentrations are lower than that brine used in the article reported and obtained some interesting results which have never found in any reference before.     

高纯氯化铯中碱金属杂质的原子吸收分析

高纯氯化铯晶体中的杂质主要为痕量碱金属锂、钠、钾和铷,产品的纯度由碱金属杂质的量决定。本文以火焰原子吸收法检测杂质质量分数,对影响测定的因素进行了探讨,并在最佳检测条件下检测了氯化铯制备过程中各个阶段的产品。