| 25 ℃时NaClNH4ClH2O三元水盐体系相平衡的研究 |
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| 引用本文： | 王卫东,汪春华.25 ℃时NaClNH4ClH2O三元水盐体系相平衡的研究[J].盐湖研究,2007,15(2):42-44. |
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| 作者姓名： | 王卫东 汪春华 |
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| 作者单位： | 湖北师范学院化学与环境工程系,湖北,黄石,435002 |
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| 摘 要： | 利用湿渣法,研究了25℃时NaCl-NH4Cl-H2O三元水盐体系的固液相平衡关系,测出了NaCl和NH4Cl在水中的溶解度数据,并绘制了相图。结果表明该体系在25℃时的相图存在6个区域,即:纯NH4Cl结晶区;纯NaCl结晶区;以NH4Cl为主的固溶体结晶区;以NaCl为主的固溶体结晶区;以NH4Cl为主的固溶体和以NaCl为主的固溶体共同结晶区以及不饱和溶液区。
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| 关 键 词： | 氯化钠 氯化铵 水溶液 相图 固溶体 |
| 文章编号： | 1008-858X（2007）02-0042-03 |
| 修稿时间： | 2006-06-06 |
Study on Phase Equilibrium of NaClNH4ClH2O Ternary System at 25 ℃ |
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| WANG Wei-dong,WANG Chun-hua.Study on Phase Equilibrium of NaClNH4ClH2O Ternary System at 25 ℃[J].Journal of Salt Lake Research,2007,15(2):42-44. |
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| Authors: | WANG Wei-dong WANG Chun-hua |
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| Institution: | Department of Chemistry and Environmental Engineering, Hubei Normal University,Huangshi 435002, China |
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| Abstract: | By means of moist solid method,the phase equilibrium of NaCl-NH4Cl-H2O ternary system at 25 ℃ was studied.The solubility data of NaCl and NH4Cl in water were obtained,and the phase diagram of the system was drawn.It is shown that there exist six phase regions in this system,i.e.NaCl and NH4Cl pure phase region respectively,NaCl and NH4Cl dominated solid solution regions respectively,co-crystalline region of NaCl and NH4Cl dominated solid solutions and unsaturated solution region. |
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| Keywords: | NaCl NH4Cl Aqueous solution Phase diagram Solid solution |
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