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用步冷曲线法研究并绘制了ＣａＣｌ２·６Ｈ２Ｏ－ＭｇＣｌ２·６Ｈ２Ｏ多温截面图，实验显示该截面有两个四相转熔反应，其转熔温度分别为２５．０℃和２２．０℃．结果表明，ＣａＣｌ２·６Ｈ２Ｏ－ＭｇＣｌ２·６Ｈ２Ｏ混合盐可用于低温相变储热．
The multi-temperature cross-section of CaCl2 · 6H2O-MgCl2 · 6H2O was studied and plotted by the step-cooling curve method. The experimental results show that the cross-section has two four-phase transformation reactions with the transformation temperatures of 25.0 ℃ and 22.0 ℃. The results show that mixed salt of CaCl2 · 6H2O-MgCl2 · 6H2O can be used for low-temperature phase change heat storage.