Phase diagram of the system KNO3+LiNO3+Mg(NO3)2+H2O

► We simulated and predicted the phase diagram of the system KNO3-LiNO3-Mg(NO3)2-H2O. ► We found three new eutectic compositions at room temperatures (288-298) K. ► Predicted eutectic materials showed excellent heat -storing and -releasing ability.