Freezing an aqueous solution always causes water to separate and form a pure ice lattice
Freezing an aqueous solution does not always form a pure ice lattice, as rapid cooling or high solute concentrations can lead to vitrification or amorphous freeze-concentrated structures rather than pure ice separation.
The claim states that freezing an aqueous solution 'always' causes water to separate and form a pure ice lattice. However, physical chemistry and thermodynamics show that freezing aqueous solutions can result in amorphous glass transitions, vitrification, or noncrystalline freeze-concentrated structures depending on the cooling rate and solute composition. Papers [3] and [4] explicitly discuss vitrification and glass transitions in frozen aqueous systems, directly refuting the absoluteness of the claim.
Roos YH. Glass Transition and Re-Crystallization Phenomena of Frozen Materials and Their Effect on Frozen Food Quality.. 2021. https://doi.org/10.3390/foods10020447
Discusses how freezing aqueous solutions (such as sucrose) produces noncrystalline, freeze-concentrated structures and glass transitions rather than pure ice lattices exclusively.
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Qiu M, Sun P, Liang Y, Chen J, Wang ZL, Mai W. Tailoring tetrahedral and pair-correlation entropies of glass-forming liquids for energy storage applications at ultralow temperatures.. 2024. https://doi.org/10.1038/s41467-024-54449-x
Demonstrates that aqueous solutions can experience vitrification (glass transition) instead of ice crystallization depending on cooling conditions and solute interactions.
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