We also explore the effect of temperature on the structure of molten NaCl-CaCl 2 . The PDF plots shown in Figure cating the atomic density decreases. The change also reflects in the coordination number (Table ) as the Na-Cl, Ca-Cl, and Cl-Cl coordination number decreases from 6.22, 6.06, and 16.41 to 6.01, 5.99, and 16.07, respectively. The structure factor (Figure ) shows that the pre-peaks at 1.0Å -1 and 1.4Å -1 increase while the first major peak at 2.48Å -1 reduces as temperature increases from 813K to 1200K. Similar behavior is observed in the molten MgCl 2 -KCl system . This suggests that at higher temperatures, shorter cation-anion-cation chains are favored which leads to more ions contributing to the interchain interaction and as a result, the enhanced pre-peak.