The experiment of 'foreign water' helps to extinguish fire quickly and effectively

What is this foreign substance and how can it effectively put out fire many times? Do you think water is the most effective way of extinguishing fire? No, evidence can be seen right below.

You can see the burning leaves in the picture, even though the water is poured in, the fire is still almost undisturbed.

So how to increase the fire extinguishing effect of water? Just add 0.1% of a strange substance, you will have the "strange water" with great fire extinguishing effect.

Let's try the fire extinguishing experiment from the two candles below. In it, people will often put water on the left candle and "strange" water on the right candle.

After the first drop, the left candle is still burning normally, while the right flame seems to be split in half.

Continuing to the second drop, the fire on the left is still the same, unmoving, while the fire on the right almost fades away, only lingering.

And just the third drop, the fire on the right was completely crushed. Meanwhile, candles with small water are often unmodified, even to the fourth and fifth drops.

Amazing yet? So what is this strange thing, and why adding it to the country makes it possible for the country to be so "aggressive"?

Explain the phenomenon

First we need to understand the nature of flames - that is, rapid oxidation, heat generation and glowing. In other words, the fire must have oxygen in the air, and want to put out the fire need to separate the fire source from oxygen.

Next, we consider the concept: liquid that stores Newton . Newton fluid is a substance with a constant viscosity over time, independent of the effect of external forces such as stirring, twisting. Our normal water is the Newton fluid.

Because of the constant viscosity, when the candle is down, the water will quickly flow away (because the candle is a waterproof substance). The temperature of the flame also has a partial reduction, but not enough to extinguish completely, so the fire continues to take oxygen in the air and burns further.

In contrast to liquids stored in Newton, non Newtonian fluids have viscosity depending on flow velocity, on temperature and pressure. For example, wall paint, liquid paint can be painted very easily, but when clinging to the wall, viscosity changes, making them not flow on vertical surfaces.

So what is "strange water" here? "Strange" substances are added to water to form "strange water" as a polymer - with the effect of turning water into a non-Newtonian liquid. As a child into a candle, instead of flowing like ordinary water, "strange water" will stick around the burning area, forming a membrane that separates the source of ignition from the air. And the result as you have seen, after only 3 drops of water, the fire has been extinguished, to be more effective.

We can consider the effect of "strange water" on the first case of burning leaves.

Both leaves are soaked in water, then set on fire. The results show that the leaves with "strange water" cannot catch fire.

If still not satisfied, please see the video below: