Fig. 8. Modification of melting behavior and properties of melts through the addition of network modifiers. (A) Schematic diagram depicting the process of soda-lime silica glass formation by introducing network modifiers like Na₂O and CaO, accompanied by their corresponding temperature-dependent viscosity profiles. (B) Approximate relation between molecular weight, glass transition temperature (T_g, blue line), melting point (T_m, red line), and polymer properties.¹¹⁷ (C) A diagram demonstrating composition-dependent solidus and liquidus points of the CsHSO₄–ZnPIm binary system at ambient pressure. Blue hexagons and red circles represent the invariant point and temperature of the liquidus, respectively. The diagram has three regions: mixed solids (blue), incongruent melting (purple), and liquid phase (red). (D) Temperature-dependent viscosity of CsHSO₄, ZnPIm-g, and [CsHSO₄]_0.5[ZnPIm]_0.5-g over heating scan. (E) Simulated average coordination number of the Co–O correlation in Co(hmba)₃[CoBr₄] structures containing 0, 1, 2, or 3 water molecules. (B and C) are adapted with permission from ref. 107. Copyright 2022 American Chemical Society. (D) is adapted with permission from ref. 118. Copyright 2023 John Wiley & Sons, Inc. under Creative Commons license CC BY 4.0. https://creativecommons.org/licenses/by/4.0/.