| 三元体系MgSO_4─CH_3CONHCONH_2─H_2O及Mg（NO_3）－ |
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| 引用本文： | 崔斌,张逢星,张军,宗建华,郭志箴.三元体系MgSO_4─CH_3CONHCONH_2─H_2O及Mg（NO_3）－[J].盐湖研究,1995(3). |
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| 作者姓名： | 崔斌 张逢星 张军 宗建华 郭志箴 |
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| 作者单位： | 西北大学化学系 |
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| 基金项目： | 陕西省教育委员会专项科研基金 |
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| 摘 要： | 本文研究了三元体系ＭｇＳＯ４—ＣＨ３ＣＯＮＨＣＯＮＨ２—Ｈ２Ｏ（Ⅰ）和Ｍｇ（ＮＯ３）２─ＣＨ３ＣＯＮＨＣＯＮＨ２—Ｈ２Ｏ（Ⅱ）在３０℃的相平衡，测定了饱和溶液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。两个体系均为简单共饱型。溶度曲线及折光指数曲线均由两支组成，分别与ＭｇＳＯ４·７Ｈ２Ｏ（Ⅰ）或Ｍｇ（ＮＯ２）２·６Ｈ２Ｏ（Ⅱ）和ＣＨ２ＣＯＮＨＣＯＮＨ２相对应。共饱点的组成分别为（Ⅰ）中ＭｇＳｏ４２７．３５％，ＣＨ３ＣＯＮＨＣＯＮＨ２ ４．７％；（Ⅰ）中Ｍｇ（ＮＯ３）２４２．７５％，ＣＨ３ＣＯＮＨＣＯＮＨ２１２．２４％。这项工作对开发缓释肥料具有重要意义。
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| 关 键 词： | 三元体系，相平衡，缓释肥料，乙酰脲，硝酸镁，硫酸镁 |
Study on the Ternary Systems MgSO_4-CH_3CONHCONH_2-H_2O and Mg(NO_3)_2-CH_3CONHCONH_2-H_2O |
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| Cui Bin,Zhang FongxingZhang Jun,Zhong Jianhu,Guo Zhizhen.Study on the Ternary Systems MgSO_4-CH_3CONHCONH_2-H_2O and Mg(NO_3)_2-CH_3CONHCONH_2-H_2O[J].Journal of Salt Lake Research,1995(3). |
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| Authors: | Cui Bin Zhang FongxingZhang Jun Zhong Jianhu Guo Zhizhen |
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| Abstract: | The solubilities and refractive indices of saturated solution of the systems MgSO4-CH3CONHCONH2-H2O(Ⅰ) and Mg(NO3)2-CH3CONHCONH2-H2O(Ⅱ) at 30℃ have been investigated. The System(Ⅰ) or (Ⅱ) are simple eutonic type, their solubility curve and refractiv index curve are consisting of two branches, corresponding to the hydrate salt MgSO4·7H2O(Ⅰ) and Mg(NO3)2·6H2O(Ⅱ)] and CH3CONHCONH2; the composistions of the eutonic points are: MgSO4 27. 35%, CH3CONHCONH2 4. 70%(Ⅰ); Mg(NO3)2 42. 75%, CH3CONHCONH2 12. 24%(Ⅰ). This work is ofinterest for developing controlled release fertilizers. |
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| Keywords: | Ternary system phase equlilibrium Controlled release fertilizers Aceturea Magnesium sulphate Magnesium nitrate |
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