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298.15K的等温溶解度相图。结果表明在273.15K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298.15K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。
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.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2010年第1期45-48,共4页
Chinese Journal of Inorganic Chemistry
基金
国家863项目(No.2006AA05Z212)
973前期预研项目(No.2006CB708604)
国家自然科学基金(No.J0830415)资助项目
关键词
溶解度
相平衡
硝酸锂
硝酸钾
solubility
phase equilibrium
lithium nitrate
potassium nitrate
