| 三元体系NaVO3-H2NCONH2-H2O 298K相平衡及平衡液相物化性质研究 |
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| 引用本文： | 彭芸,曾英,周琳,李元波. 三元体系NaVO3-H2NCONH2-H2O 298K相平衡及平衡液相物化性质研究[J]. 矿物岩石, 2005, 25(2): 118-120 |
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| 作者姓名： | 彭芸 曾英 周琳 李元波 |
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| 作者单位： | 成都理工大学材料与生物工程学院,四川,成都,610059;成都理工大学材料与生物工程学院,四川,成都,610059;成都理工大学材料与生物工程学院,四川,成都,610059;成都理工大学材料与生物工程学院,四川,成都,610059 |
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| 基金项目： | 四川省教育厅青年科学基金(2003B027);四川省应用基础研究基金(04JY029-008-1;中国地质调查局项目(200314200015) |
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| 摘 要： | 采用等温平衡溶解平衡法测定了三元体系NaVO3-H2NCONH2-H2O 298K下的溶解度及平衡液相物化性质(密度、电导率、pH值)，绘制出了相应的溶解度等温图和物化性质一组成图。此三元体系等温溶解度图属简单共饱型，未产生新的复盐和固溶体。2个结晶区分别对应为盐NaVO3和H2NCONH2，无变量点平衡液相组成为：ω(NaVO3)3．99％，ω(H2NCONH2)40．17％，对应的平衡固相盐为NaVO3和H2NCONH2。
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| 关 键 词： | NaVO3 三元体系 等温溶解平衡法 物化性质 |
| 文章编号： | 1001-6872(2005)02-0118-03 |
| 修稿时间： | 2005-01-28 |
EXPERIMENTAL STUDY ON THE EQUILIBRIUM PHASE DIAGRAM AND SOLUTION PROPER TIES OF THE TERNARY SYSTEM NaVO3-H2NCONH2-H2O AT 298 K |
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| PENG Yun,ZENG Ying,ZHOU Lin,LI Yuan-bo. EXPERIMENTAL STUDY ON THE EQUILIBRIUM PHASE DIAGRAM AND SOLUTION PROPER TIES OF THE TERNARY SYSTEM NaVO3-H2NCONH2-H2O AT 298 K[J]. Journal of Mineralogy and Petrology, 2005, 25(2): 118-120 |
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| Authors: | PENG Yun ZENG Ying ZHOU Lin LI Yuan-bo |
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| Affiliation: | PENG Yun,ZENG Ying,ZHOU Lin,LI Yuan-boCollege of Materials and Bioengineering,Chengdu University of Technology,Chengdu610059,China |
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| Abstract: | In this paper,solubilities and properties (density,conductivity and pH value) of equilibrium solution were studied in the ternary system NaVO_3-H_2NCONH_2-H_2O at 298K by isothermal method.Phase diagram and physicochemical properties-composition diagrams of the ternary system were plotted according to the experimental data.This ternary system was a simple evtonic one without double salt or solid solution.The isotherm diagram consisted of two univariant curves and two crystallization fields corresponding to NaVO_3 and H_2NCONH_2,and the composition of equilibrium solution of invariant point was:w(NaVO_3)3.99%,w(H_2NCONH_2)(40.17%) respectively. |
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| Keywords: | NaVO_3 ternary system isothermal method physicochemical properties |
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