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用步冷曲线法和DSC法测定了CH_3COONa·3H_2O-Na_2SO_4·10H_2O截面,得到了体系的多温图。结果表明,此截面的两条三次结晶水平线的温度值分别为: 液+Na_2SO_4(?)Na_2SO_4·10H_2O+CH_3COONa·3H_2O_2:18.2℃; 液+CH_3COONa(?)Na_2SO_4+CH_3COONa·3H_2O:58.1℃。
The cross section of CH_3COONa · 3H_2O-Na_2SO_4 · 10H_2O was determined by the step-cooling curve method and the DSC method, and the thermogram of the system was obtained. The results show that the temperature of the two third-order crystallographic horizon of this section are: liquid + Na_2SO_4 (?) Na_2SO_4 · 10H_2O + CH_3COONa · 3H_2O_2 at 18.2 ℃; liquid + CH_3COONa (?) Na_2SO_4 + CH_3COONa · 3H_2O at 58.1 ℃.