What is it about?
Water can stay liquid for some time below the freezing point, a phenomenon known as supercooling. In the supercooled state, water has shown remarkable properties, including separating into two different liquids: high-density and low-density water. However, the colder water becomes, the faster it freezes, making it hard to investigate the deeply supercooled regime with experiments. Our simulations allowed us to bypass this problem and confirm the unexpected increase in the surface tension of supercooled water (a so-called inflection point) and to link its origin to the accumulation of high-density water at its surface, showing that the surface of supercooled water is unexpectedly inhomogeneous.
Photo by Daniel Sinoca on Unsplash
Why is it important?
Detailed knowledge of the properties of supercooled water is critical for climate modelling because water droplets in the atmosphere can reach the supercooled regime. Another area where this information could prove helpful is the study of microorganism cold adaptation and cell cryopreservation.
Read the Original
This page is a summary of: High-density liquid (HDL) adsorption at the supercooled water/vapor interface and its possible relation to the second surface tension inflection point, The Journal of Chemical Physics, February 2023, American Institute of Physics, DOI: 10.1063/5.0132985.
You can read the full text:
The following have contributed to this page