| 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, 0(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, 0(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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