Superionic and metallic states of water and the Anomaly of Water

In summary, there are theories that suggest a bizarre form of water, such as type VII ice, may exist all over the universe at extreme pressures. This has been speculated since 1990 and there have been experiments and studies on high-pressure phases of ice that support this idea. There are also theories that suggest ice XI may be the more common form of water in the universe at even higher pressures. This is still a topic of research and further experiments and studies are needed to fully understand the nature of this potential universal form of water.
  • #1
Black iceI knew the Black Ice Theories since around 1990
-- Demontis, P., LeSar, R. & Klein, M. L. New high-pressure phases of ice. Phys. Rev. Lett. 60, 2284–2287 (1988). --

and since 1990 i have been asking myself:

if you have deepsea-water / water under great preasure
and you "Freeze" the water
the volumina of the water-cube go down.

there are theories that you "Freeze" the 4°C deepsea! water
(has absolutely nothing to do with freezing of a lake / surface)
possible or not?
As example from wiki:
"type VII ice which is 60 percent denser than normal water " … volume bigger/smaller?
Physics news on
  • #2
Cubic ice, 1c, is theorised, not sure if it is an experimental fact, might form in terrestrial conditions, but I think is only in small volumes and is metastable.

At terrestrial lab conditions there is Ice IX ;

At higher pressures, all sorts of things are theoretically possible. I read that Jupiter's magnetic field has been speculated to be partly or significantly due to metallic water.

According to some texts, ice XI is possibly the more common phase of water in the universe;, in an orthrhombic form, but at much higher (TPa) pressures may form hexagonal metallic forms.

This is just what I have read, I have no background on this. Not read about your link before. Interesting.

Related to Superionic and metallic states of water and the Anomaly of Water

1. What is a superionic state of water?

A superionic state of water is a state in which water molecules break apart into positively charged hydrogen ions and negatively charged hydroxide ions, while the electrons remain free to move. This state occurs at extremely high temperatures and pressures, and is thought to exist in the interiors of giant icy planets.

2. How is a metallic state of water different from a superionic state?

In a metallic state of water, the electrons are no longer free to move and instead become bound to the hydrogen ions, creating a conductive material. This state is believed to occur at even higher temperatures and pressures than the superionic state.

3. What is the anomaly of water?

The anomaly of water refers to the fact that water has several unusual properties compared to other liquids, such as expanding when frozen, having a maximum density at 4 degrees Celsius, and having a high surface tension. These anomalies are still not fully understood and are the subject of ongoing research.

4. How do superionic and metallic states of water relate to the anomaly of water?

The superionic and metallic states of water are believed to be responsible for some of the anomalies of water. For example, the high surface tension of water may be due to the presence of a superionic layer at the surface. Understanding these states of water can provide insight into the unusual properties of water.

5. What are the potential applications of studying superionic and metallic states of water?

Studying these states of water can provide valuable information for understanding the interiors of icy planets and other celestial bodies. Additionally, understanding the anomalies of water could have practical applications in fields such as materials science and energy production. For example, harnessing the conductive properties of metallic water could lead to more efficient energy storage and transportation systems.

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