Supercooling is the cooling of a liquid below its freezing point without it becoming solid. Freezing point depression is when a solution can be cooled below the freezing point of the corresponding pure liquid due to the presence of the solute; an example of this is the freezing point depression that occurs when salt is added to pure water.

2020年6月1日 · Water normally freezes into ice at 0 °C or 32 °F, but it can be supercooled at ordinary pressures down to a temperature as low as −48.3 °C or −55 °F, as long as there are no nucleation sites to support ice crystal growth. At the bottom end of the temperature range, supercooled water is glassy water.

2022年9月4日 · Supercooling is defined as the state in which the temperature of the liquid or gas is lowered below the freezing point without letting the gas or liquid turn into a solid. This process is also known as undercooling. What happens during supercooling?

2010年12月7日 · Although this phenomenon, known as supercooling, was discovered in 1724 by Daniel Gabriel Fahrenheit (Fahrenheit, 1724), it is still the subject of much research. For scientists, the liquid phase is a curious state of matter between order and disorder.

2019年9月8日 · Here are step-by-step instructions for supercooling water at home. The simplest way to supercool water is to chill it in the freezer. Place an unopened bottle of distilled or purified water (e.g., created by reverse osmosis) in the freezer.

Supercooled water is water that remains in its liquid state far below the freezing point. But in order for this to work, the water must be very purified so that the impurities in the water don’t create a place for crystallization to occur.

2020年9月22日 · The surprising thing they found is that, in the right circumstances, supercooled water can actually be two liquids in one. "We showed that liquid water at extremely cold temperatures is not only relatively stable, it exists in two structural motifs," says chemical physicist Greg Kimmel from the US Department of Energy's Pacific Northwest ...

2014年6月18日 · Now, however, a novel experiment has allowed researchers their first glimpse into the microscopic structure of supercooled water. Despite its ubiquity on this planet (and in our bodies, and in the universe), water’s a pretty weird substance.

2022年12月15日 · In 1992, scientists suggested that water might have another unusual attribute: they proposed that it could transition between high- and low-density liquid forms when it is supercooled—quickly chilled to a temperature below which it would normally freeze.