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Li~+,Na~+//+ Cl~-,B_4O_7~(2-)-H_2O Reciprocal Quaternary System Solubility Phase Diagrams
引用本文:Ma Peichao and Chen Peiheng(Department of Chemistry,Northwest University,Xian). Li~+,Na~+//+ Cl~-,B_4O_7~(2-)-H_2O Reciprocal Quaternary System Solubility Phase Diagrams[J]. 高等学校化学研究, 1988, 0(4)
作者姓名:Ma Peichao and Chen Peiheng(Department of Chemistry  Northwest University  Xian)
作者单位:Department of Chemistry,Northwest University,Xian
摘    要:
The solubilities, refraction indices and densities of saturated solution of Li+ , Na+ Cl- ,B4O72- -H2O reciprocal quaternary system at 0℃, 25℃ and 50℃ were determined by using isotherm method. Using total concentration of all the salts in solution as concentration coordinate(ordinate) the isothermal stereogram of solubility of the system was drawn. The results showed that the stable salt-pair of the system is Na2Cl2-Li2B4O7 and that there are two isothermal invariant points, eutonic ponit E and inversion point Pcorresponding to the eqilbria: solution (E) LiCl·H2O (at 25, 50℃) or LiCl·2H2O (at 0℃) + NaCl + Li2B4O7 · 3H2O and solution (P) + Na2-B4O7·1OH2O NaCl + Li2B4O7·3H2O and the crystallization fields ofborates are much larger than those of chlorides.


Li~+,Na~+//+ Cl~-,B_4O_7~(2-)-H_2O Reciprocal Quaternary System Solubility Phase Diagrams
Ma Peichao and Chen Peiheng. Li~+,Na~+//+ Cl~-,B_4O_7~(2-)-H_2O Reciprocal Quaternary System Solubility Phase Diagrams[J]. Chemical Research in Chinese University, 1988, 0(4)
Authors:Ma Peichao and Chen Peiheng
Abstract:
Keywords:Reciprocal quaternary system   Phase diagrams   Isotherm  
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