Up to this point, water – the world’s most common liquid is still surprising science.
Water is a particularly important liquid, because it determines whether life can exist. Because of that, water is the most studied liquid, and hidden deep inside it are also secrets that until now we have not been able to fully exploit.
As recently, science has once again found out more secrets that water is holding. Accordingly, water is not just a liquid, but a combination of two liquids.
Water is a mysterious liquid.
It sounds odd, but this is not a strange phenomenon. Science has observed this phenomenon in a number of other substances, such as silicon and germanium. Accordingly, these liquids exist in two different density states – one high, one low – depending on temperature and pressure.
The temperature point that causes this transition is known as the “second extreme “, to distinguish it from the critical point before the liquid turns to a gas. With the 2nd point, substances will change from one liquid to another.
According to the study, published in the journal New Scientist, the hypothesis that water has two extremes has actually been raised in recent decades. As in 1992, experts from Boston University studied how the density of water changes when the temperature drops. And they found that the lower the temperature, the more stable the density becomes, less volatile than is commonly thought.
Based on computer simulations, this effect will continue to occur if the temperature is low, even if the freezing temperature is exceeded. However, to find the second extreme point of water is not easy. In fact, pure water may not freeze even if the temperature is below zero, but it will eventually freeze with the right action.
In general, in order to confirm the hypothesis that water is a combination of two liquids, two research groups have performed experiments. The first group was led by Professor C. Austen Angell from Arizona State University – when he added hydrazineium trifluoroacetate to water to prevent it from turning into ice. The other group uses an ultra-pure water sprayer in a vacuum environment.
Water can switch between two liquids when the right temperature and pressure is reached.
Although the methods differ, the result is the same: the density of water will become more and more stable as the temperature drops. This is entirely possible because water has another liquid state, and they are just trying to convert between the two forms, like the way from solid to liquid.
However, other experts disagree, saying that there are many other reasons that can also cause the density of water to have such an effect. To confirm that water has one or two liquid forms, further studies are needed in the future.