| 普钙-脲-水复合肥料体系的等温溶度研究 |
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| 引用本文： | 张逢星,杨琴,崔斌,赵晓利,段朝阳.普钙-脲-水复合肥料体系的等温溶度研究[J].物理化学学报,2000,16(1):27-30. |
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| 作者姓名： | 张逢星 杨琴 崔斌 赵晓利 段朝阳 |
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| 作者单位： | Department of Chemistry ,Northwest University,Xi'An 710069 |
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| 基金项目： | 陕西省教委专向科研基金 |
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| 摘 要： | 从发展复合肥料出发，研究了ＣａＳＯ－Ｃａ（Ｈ２ＰＯ４）２Ｈ２Ｏ体系及其三元边界体系Ｃａ（Ｈ２ＰＯ４）２－ＣＯ（ＮＨ２）２－Ｈ２Ｏｄ ２５℃时的等温溶度，三元体系中形成一个新化合物Ｃａ（Ｈ２ＰＯ４）２。ＣＯ（ＮＨ２）２。四元体系溶 度图可以指导商品普钙磷肥转化为含各合复肥。
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| 关 键 词： | 相平衡 溶解度 复合肥料 硫酸钙 脲 磷酸二氢钙 |
| 收稿时间： | 1999-03-23 |
| 修稿时间： | 1999-06-03 |
Studies on the Isothermal Solubility of the Systems CaSO4-Ca(H2PO4)2-CO(NH2)2-H2O and Ca(H2PO4)2-CO(NH2)2-H2O at 25℃ |
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| Zhang Fengxing,Yang Qin,Cui Bin,Zhao Xiaoli,Duan Zhaoyang.Studies on the Isothermal Solubility of the Systems CaSO4-Ca(H2PO4)2-CO(NH2)2-H2O and Ca(H2PO4)2-CO(NH2)2-H2O at 25℃[J].Acta Physico-Chimica Sinica,2000,16(1):27-30. |
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| Authors: | Zhang Fengxing Yang Qin Cui Bin Zhao Xiaoli Duan Zhaoyang |
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| Institution: | Department of Chemistry ,Northwest University,Xi'An 710069 |
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| Abstract: | The titled quaternary system CaSO4-Ca (H2PO4 ) 2 - C O (NH2 ) 2 -H2O and its ternary boundary system Ca(H2PO4 )2-CO(NH2 )2-H2O have been investigated at 25℃ in order to develop complex fertilizer. One new compound Ca(H2PO4)2?CO (NH2)2 was found in the ternary system. There were two complex compounds Ca(H2PO4)2? CO(NH2 )2 and CaSO4? 4CO(NH2 )2. |
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| Keywords: | Phase equilibrium Solubility Complex fertilizer Urea Calcium sulfate Calcium phosphate |
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