三元体系硝酸镧-甘脲-水在30℃时的等温溶度研究  

Study on Isothermal Solubility of La(NO_3)_3-Glycoluril-H_2O Ternary System at 30℃

作　　者：赵霈[1] 张逢星[1] 杨琴[1] 史启祯[1] 

机构地区：[1]西北大学化学系,陕西西安710069

出　　处：《化学世界》2000年第10期516-519,共4页Chemical World

基　　金：陕西省教委专项科研基金!资助项目 (95 JK0 1 2 )

摘　　要：报道了三元体系硝酸镧 -甘脲 -水 (La(NO3) 3-Glycoluril-H2 O)在 30℃时等温溶度与饱和溶液的折光率 ,绘制了相应的溶度图及饱和溶液折光率指数曲线。体系中形成新相 La(NO3) 3· 2 Glycoluril· 2 H2 O,为异成份溶解化合物。通过元素分析、红外光谱分析以及 X-射线粉末衍射分析对新相进行了表征。Ternary system La(NO 3) 3 Glycoluril H 2O, as a potential complex slow release fertilizer, was investigated by isothermal method at 30℃. Its phase diagram and refraction indices were constructed. A new incogruent phase, La(NO 3) 3·2Glycoluril·2H 2O, was formed, This new compound was studied by elementary analysis, IR and X ray diffraction.

关 键 词：三元体系 相平衡 硝酸镧 甘脲 水 缓释氮肥 

分 类 号：S143.15[农业科学—肥料学] O642.54[农业科学—农业基础科学]