| LiNO3-KNO3-H2O三元体系相平衡研究 |
| Phase Equilibrium of LiNO3-KNO3-H2O System |
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| 摘要: 本文采用等温法分别测定了KNO3-H2O体系的溶解度相图以及LiNO3-KNO3-H2O体系在273.15和298.15 K的等温溶解度相图。结果表明在273.15 K时LiNO3-KNO3-H2O体系的溶解度等温线有2条分支，对应的固相分别为KNO3和LiNO3·3H2O，共饱点组成为31.55wt% LiNO3和7.07wt% KNO3。该体系在298.15 K的等温线有3条分支，对应的固相分别为KNO3，LiNO3和LiNO3·3H2O，2个共饱点组成分别为50.42wt% LiNO3，22.18wt% KNO3，和55.74wt% LiNO3，10.9wt% KNO3。 |
| 关键词: 溶解度 相平衡 硝酸锂 硝酸钾 |
| 基金项目: |
| Abstract: By means of isothermal solution method, solubility of the binary system KNO3-H2O and the isotherms of ternary system LiNO3-KNO3-H2O at 273.15 and 298.15 K were measured. The results show that there are two solubility branches at 273.15 K corresponding to solid phase KNO3, LiNO3·3H2O, the invariant point composition is 31.55wt% LiNO3 and 7.07wt% KNO3, while there are three solubility branches at 298.15 K corresponding to solid phase KNO3, LiNO3 and LiNO3·3H2O, respectively, the two invariant points composition are 50.42wt% LiNO3, 22.18wt% KNO3 and 55.74wt% LiNO3, 10.9wt% KNO3, respectively. |
| Keywords: solubility phase equilibrium lithium nitrate potassium nitrate |
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| 尹 霞,吴玉双,李琴香,曾德文,王 成.LiNO3-KNO3-H2O三元体系相平衡研究[J].无机化学学报,2010,26(1):45-48. |
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