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研究了题述2个(M=Zn,n=2;M=La,n=3)三元体系在30℃的相平衡,测定了饱和溶液的溶解度及其折光指数,绘制了相应的溶度图和折光指数-组成关系图。La(NO3)3体系溶度曲线及折光指数曲线均由3支组成,分别与La(NO3)3·6H2O、La(NO3)3·3H2O和CH3CONHCONH2相对应。2个共饱点的组成分别为:La(NO3)358.34%,CH3CONHCONH216.53%和La(NO3)358.31%,CH3CONHCONH24.52%。Zn(NO3)2体系溶度曲线及折光指数曲线均由两支组成,分别与Zn(NO3)2·6H2O和CH3CONHCONH2相对应,该体系为简单共饱型,共饱点的组成含Zn(NO3)250.86%和CH3CONHCONH211.70%。相平衡的数据可以用来合成缓释肥料
The phase equilibrium of two ternary systems (M = Zn, n = 2; M = La, n = 3) was discussed at 30 ℃. The solubility and refractive index of the saturated solution were measured and the corresponding solubility Graph and refractive index - composition diagram. The solubility curve and refractive index curve of La (NO3) 3 system are composed of three phases, corresponding to La (NO3) 3 · 6H2O, La (NO3) 3 · 3H2O and CH3CONHCONH2, respectively. The compositions of the two co-floats are respectively: 358.34% of La (NO3), 316.53% of CH3CONHCONH, 358.31% of La (NO3) and 24.52% of CH3CONHCONH. The solubility curve and refractive index curve of Zn (NO3) 2 system are composed of two components, corresponding to Zn (NO3) 2 · 6H2O and CH3CONHCONH2, respectively. The system is simple and full- ) 250.86% and CH3CONHCONH211.70%. Phase-balanced data can be used to synthesize slow release fertilizers