Supported by the National Natural Science Foundation of China(No.40673050);the Research Fund for the Doctoral Program of Higher Education from the Ministry of Education of China(No.20070616008);the Scholarship Leaders Training Fund from Sichuan Province,China(No.2008-140)
The metastable phase equilibria of the quaternary system NaCl+Na2CO3+Na2SO4+H2O were studied at 273.15 K. The salts' solubilities, densities and pH values of the equilibrated solution in this system were determine...