After the new pot is opened, the body of the pot is full of uneven light white, is it water alkali o

Your question, such an old purple clay pot has good mud; There is a lot of uneven light white distribution outside, which is caused by the alkali seepage of the pot body "after the tofu sugar is boiled"; You can use this purple clay pot to stuff the tea leaves soaked for a long time, boil for 2 hours on low heat, and this situation can disappear; collectible; I wish you an auspicious Year of the Snake!!

The appearance of "white gas" is due to hot water vapor.

When condensed, it condenses into small water droplets. However, the gas flushed out of the spout has a fast flow rate and the highest temperature, and the high speed makes the water vapor less affected by the cold air, so after decelerating after a certain distance from the spout, it fully meets with the cold air to form "white gas". When the kettle is less open, there is no white gas near the spout pot because the temperature near the spout is higher, and the water in the kettle.

The vaporized water vapor does not liquefy near the spout, so there is no "white gas" near the spout.

The white gas seen when boiling water is formed by the liquefaction of the water vapor coming out of the kettle when it is cold, the temperature at the spout is relatively high, and the water vapor coming out of the kettle cannot be liquefied, and the air temperature is relatively low in the far away of the spout, and the water vapor coming out of the kettle liquefies into small water droplets when it is liquefied by the cold air.

After the water is boiled, the water at 100 degrees will become water vapor and come out, and then due to the low temperature of the air, the water vapor will be liquefied into small droplets, so the "white gas" we see is only a small water droplet after liquefaction, and the real water vapor is invisible, which is the real reason why there is no white gas in the place closest to the spout.

The cause of white gas is the formation of small water droplets formed by the liquefaction of water vapor when it is cold. But in fact, whether it is boiling water or the formation of car exhaust in winter, it is the spout of the pot.

There is some distance. This is because when heating, the metal body has the function of conducting heat, and the air around the spout and the spout are hot and almost at the same temperature as the water vapor, so the water vapor is not cold in this range, and it will not liquefy into small water droplets, and there will be no white gas. In a slightly farther place, the air is cold, and there is a large temperature difference between the high temperature water vapor, so the water vapor will be cold and form small nuclear water droplets.

Because, in winter, the ambient temperature is low, so the phenomenon is obvious. It's like the exhaust gas in winter, and when you breathe in winter, it doesn't form white gas in your mouth. Do you understand?

The appearance of white gas is due to the formation of small water droplets when the water vapor meets the cold air, and the position of the spout is very hot.

When the water is boiled, there will be rising "white gas" near the spout, which is formed by the liquefaction of water vapor; When the "white gas" rises to a certain level, it disappears, and Bu Shen knows that this is due to the vaporization of small water droplets, so there is no white gas near the spout.

The closer to the spout, the higher the temperature, it is not easy to form a hedge with the cold air, so it will not produce white gas.

It may be that the temperature near the spout itself is relatively high, so no white gas is generated.

This so-called "white gas" is the process of liquefaction of water vapor.

Water vapor is colorless and transparent.

The water vapor coming out of the spout is colorless because the temperature is 100 degrees Celsius at the beginning.

Gradually, the water vapor comes into contact with the air, cools and liquefies, forming small water droplets that turn white.

Therefore, when the water in the kettle is boiling, the "white gas" is not visible in the section near the spout, but it can be seen in the upper section.

The water vapor is colorless, and the water vapor that has just been vaporized near the spout is at a temperature of 100 degrees Celsius, so it is not visible.

However, as the water vapor leaves the spout, the temperature decreases, and the water vapor liquefies, turning into small droplets, which are mist, and cannot allow light to pass through completely, so they are white.

In fact, the white gas we see is that the water vapor solidifies into small particles in the air, so it is visible, but near the spout it is not visible because it is not cooled - it is still gaseous.

The white substance is calcium carbonate or magnesium carbonate. When water is boiled, the bicarbonate in it decomposes.

This white substance is calcium and magnesium salt, because the water contains a certain amount of minerals, and after boiling, it will form a powder and sink to the bottom of the pot.

Because water is raw water, there are a lot of impurities in raw water, and this kind of thing will appear every time we boil the water. Over time, a lot of white matter will accumulate.

Water vapour. It is a state of water. When the temperature of water exceeds 100 degrees Celsius (or above the boiling point), the water molecules absorb enough internal energy to convert it into a repulsive force free from the constraints of the molecules, and the distance between the molecules begins to increase, and the water changes from a yard wide liquid state to gaseous water.

This kind of gaseous water does not contain any other substances, and is theoretically distilled water (the air contains impurities) also known as water vapor.

When water is below the boiling point, water can also slowly evaporate into water vapor.

Scientifically speaking, water at room temperature will slowly turn into water vapor and fly into the air, this phenomenon is called.

Evaporate. "He then adds: "Water vapor is a gaseous state of water, which is colorless

The water on the earth became water vapor, and these water vapors formed white clouds in the sky; If the water vapor condenses into larger water droplets, the water droplets will fall down to form rain.

When a large amount of water vapor condenses in the air, it often presents a mass of "white gas", and "white gas" is often mistaken for water vapor.

It is enough to cool the water vapor that boils water into in the air.

By comparing the color, morphology, and form of "white gas" and water vapor

Depending on the location of the gas, it can be seen that the "white gas" is not water vapor, but small water droplets condensed by water vapor floating in the air.

Water vapor is invisible.

White gas is a mist formed by the liquefaction of lead beams when water vapor meets cold air.

It is composed of countless small droplets of water that are subtle and sleepy.

The main components are CaCO3 and Mg(OH)2

Natural water generally contains small amounts of calcium and magnesium ions, as well as a small amount of bicarbonate ions. Natural water is heated and boiled, and since the thermal decomposition temperature of calcium bicarbonate and magnesium bicarbonate is below 100 degrees Celsius, calcium bicarbonate will decompose into calcium carbonate, carbon dioxide and water, and magnesium bicarbonate will also decompose into magnesium carbonate, carbon dioxide and water. However, when boiled for a long time, magnesium carbonate reacts with water and is partially or completely converted into magnesium hydroxide.

This is because magnesium hydroxide is less soluble than magnesium carbonate, and continuous heating produces more insoluble magnesium hydroxide, which is conducive to the hydrolysis of magnesium carbonate. Calcium carbonate, magnesium carbonate, and magnesium hydroxide are all substances with very low solubility that can precipitate out of water and form a precipitate. The precipitates formed usually carry some crystalline water and also contain small amounts of other metal ions.

It may also contain some amount of magnesium bicarbonate. Can be cleaned with vinegar.

If it is said that the newly bought pot has scale, it seems that the water quality of your home is excellent, and it is recommended to install a water quality processor.

"White gas"It is because the warm water vapor in the kettle meets the colder air outside the kettle, and the exothermic liquid is chaotic or turned into small water droplets, small water droplets.

2.Because the temperature around the spout of the kettle is relatively high, it cannot prevent heat liquefaction, so the white gas always leaves the spout.

Because of the high temperature, the real water vapor is invisible, that is, the white gas cannot be seen near the spout. When the water vapor leaves the spout, the temperature decreases, so the water vapor condenses into small droplets, which is what we call white fog.