Sometimes there is a white substance in the electric kettle? Is it harmful to humans?

The white substance inside the electric kettle is limescale, which will not have a special effect on the body within a certain content range.

After the water is boiled, a part of the water evaporates, and calcium sulfate (caso4, gypsum is calcium sulfate containing crystal water) that is not easy to dissolve precipitates. The original dissolved calcium bicarbonate (Ca(HCO3)2) and magnesium bicarbonate (mg(HCO3)2) are decomposed in boiling water to release carbon dioxide.

CO2), which becomes insoluble calcium carbonate.

CaCO3) and magnesium hydroxide (Mg(OH)2) also precipitate, and sometimes MgCO3 is also formed. This results in the formation of limescale.

The main components of limescale are carbonates, such as magnesium carbonate and calcium carbonate, after the water is absorbed by the human body, gastric acid dissolves the magnesium carbonate and calcium carbonate in the scale, and the part that cannot be decomposed will be excreted with the feces.

National Standards of the People's Republic of China.

The hygienic standard of drinking water is that the water hardness should be moderate, not higher than 450mg L, and the total dissolved solids (TDS) should be 1000 (mg L), which is healthy water. The hardness of the water is too low, heart disease, diabetes.

of prevalence. Water that is too hard or too soft.

Not good for your health.

World Health Organization.

It is believed that the minimum content of calcium and magnesium should be clearly specified in the water quality standard, which should be above 30mg l. From 2006 to 2007, the calcium intake of Chinese was only 620mg d, and the per capita daily intake of calcium was often lower than the recommended daily nutrient intake, so water is a good calcium supplement. There is a certain relationship between calcium and magnesium deficiency and sudden death caused by cardiovascular disease, which is negatively correlated with the hardness of water.

However, the hardness of the water should not be too high, if it exceeds the standard value, it will cause stone disease, indigestion and other diseases, some parts of Hunan Province and Chengdu Shuangliu.

The hardness of the area is seriously excessive and needs to be softened.

After the tap water is boiled, it is best to let the water in the kettle settle for a while before drinking.

Not so clear! It should be harmful!

Wait for the water to settle for a short period of time before drinking, it should be fine.

The floating matter in boiled water is water alkali, and a small amount of water alkali floats on the surface of the water in boiled water. Water alkali, that is, scale, refers to the white lump or powdery substance gradually formed by the mineral contained in hard water after boiling in the container (such as pot, pot, etc.), and the main components are calcium carbonate, magnesium carbonate, calcium sulfate, magnesium sulfate, calcium chloride, magnesium chloride, etc. When limescale fragments enter the stomach, they react with hydrochloric acid, releasing calcium and magnesium ions, which are necessary for stone formation, and carbon dioxide.

The latter can cause flatulence and discomfort, and patients with gastric ulcers may also be at risk of gastric perforation.

Prevention and removal of limescale:

1. Vinegar to remove scale.

This method is the simplest and most practical method, put white vinegar into 10% of the scale of the kettle, then fill it with water, boil it for about an hour, and then brush it, aged vinegar can also be, but the effect of aged vinegar is not as good as white vinegar. Do not use vinegar essence or white vinegar, because vinegar contains substances that adsorb water alkali, and there is no water alkali in the boiled water on the surface, but when people drink water, they will drink the water alkali contained in the vinegar, which increases the harm of water alkali.

2. Boil the potato in the electric kettle to remove scale.

Put more than half a kettle of yams, fill with water, cook the yams, and then boil the water later, so that there will be no limescale. However, it should be noted that after boiling the potato, the inner wall should not be scrubbed, otherwise it will lose its descaling effect.

3. Baking soda removes scale.

Generally, the heating plate of the electric kettle is made of aluminum, when the electric kettle boils water, it is easy to form scale, generally we can put 1 teaspoon of baking soda, boil for a few minutes, and the scale will be removed.

4. Remove limescale from boiled eggs.

Generally, the electric kettle is hard and hard to remove after a long time, if you use it to boil eggs twice, you will receive the desired effect.

What to do if there is always white sediment in the kettle? Is there any damage to the body?

A In fact, the main component of this layer of white scale is carbonate, and the reason why a layer of white scale is formed is because the content of calcium ions and magnesium ions in tap water is too high, that is, the hardness of water is too high.

The ** of tap water is generally taken from natural water, water contains a large number of natural minerals, but also rich in a lot of ionic substances, under the action of high temperature, calcium and magnesium ions and hydroxide ions in the water combine to form a white precipitate, chemically called magnesium carbonate and calcium carbonate.

The white precipitation in the boiling water is the composition of calcium carbonate and magnesium carbonate, which reflects the hardness of the water quality, this water often exists in the north of our country, in the north, the amount of water precipitation is relatively small, people mostly take groundwater as the main drinking water, the deeper the well, the higher the mineral content in the water, the more sediment in the water after boiling, this water can be precipitated for a while, and the boiling water boiled out of the tap water has precipitation is also this reason, it can also be drunk.

The white precipitate in the boiling water is commonly known as "water alkali", mainly calcium carbonate and magnesium carbonate, from the perspective of water safety, the hardness of tap water is safe, do not drink this precipitate directly, the surface water after precipitation is not harmful to the human body, you can drink it with confidence.

No matter what kind of water, it contains a certain amount of calcium and magnesium ions, which cannot be removed, and there will always be more or less white precipitate in heating, which does not prove that the water is polluted, nor does it mean that the water is very dirty, after the pure water is filtered, the ions will become very few, and there will be no precipitate when burned.

These white sediments are not harmful to health. Calcium and magnesium ions are essential minerals for the human body, which can effectively promote the body's metabolism, and most people's calcium and magnesium intake is low, so drinking this water (hard water) in daily life can also replenish some minerals.

The white precipitate is not harmful to health, and its main component is carbonate, because the tap water contains too much calcium and magnesium ions, that is, the hardness of the water is too high.

The scale of the kettle is that the alkalinity of the water is too large, and the calcium and magnesium ions are combined into calcium carbonate, which can generally be dissolved in water by reacting with acetic acid; It doesn't matter if you drink it for a long time, it will react with stomach acid and dissolve, so don't worry too much.

You can buy a water purifier to get rid of the white sediment, because there are many minerals that exceed the standard, such as calcium carbonate, etc., which are seriously harmful to people's health if eaten for a long time.

The white precipitate in the boiling water is commonly known as "water alkali", and we can buy substances that remove water alkali, and these white sediments are not harmful to health.

It will definitely cause a lot of damage to a person's body, and may even get cancer, and these things in it should be cleaned up regularly, and you can buy some related experiences to clean up. It may even affect the stomach and intestines.

It will definitely be harmful to our health, because if this white scale is drunk into the throat, it will make our throat feel very itchy.

These things are harmful to human health, so they must be cleaned up in time, and a filter can also be installed, so that impurities and white alkali in the water can be reduced.

Summary. The white slag inside the electric kettle is limescale, commonly known as "rust". The main components are calcium carbonate, magnesium carbonate, calcium sulfate, magnesium sulfate, calcium chloride, magnesium chloride, etc.

Drinking it is harmless to the body, the water contains scale, and there is no other way to drink it after boiling and precipitating.

Scale refers to the crystalline body formed by the continuous adhesion and accumulation of impurities in natural water on the inner surface of the boiler boiler, which is generally white or yellowish-white. The thermal conductivity of scale is very poor, and if the scale in the boiler is too thick, it will lead to the reduction of boiler efficiency, and in the worst case, it will cause the boiler to burst and cause boiler accidents.

What is the white scum inside an electric kettle?

What is the white scum inside an electric kettle?

The white slag inside the electric kettle is limescale, commonly known as "rust". The main components are calcium carbonate, magnesium carbonate, calcium sulfate, magnesium sulfate, calcium chloride, magnesium chloride, etc. Drinking it is harmless to the body, the water contains scale, and there is no other way to drink it after boiling and precipitating.

Scale refers to the crystalline body formed by the continuous adhesion and accumulation of impurities in natural water on the inner surface of the boiler boiler, which is generally white or yellowish-white. The thermal conductivity of scale is very poor, and if the scale in the boiler is too thick, it will lead to the reduction of boiler efficiency, and in the worst case, it will cause the boiler to burst and cause boiler accidents.

And there is no water in some places?

Problems with water quality.

Usually we have tap water.

Long-term drinking, daily meals, drinking is not harmful to the body.

It is the domestic water at home.

Wait for the precipitation to be drunk.

I can't precipitate rice when I cook it.

Cooking rice does not affect.

He is prone to limescale in the electric kettle.

The floating matter in the boiled water you are talking about is water alkali, and a small amount of water alkali floats on the surface of the water in boiled water.

Water alkali: water alkali, that is, scale, the main components are calcium carbonate and magnesium hydroxide. The calcium and magnesium ions in the water combine with the bicarbonate ions to form magnesium bicarbonate and calcium bicarbonate, the magnesium bicarbonate is unstable and eventually converted into magnesium hydroxide, and the calcium bicarbonate is converted into calcium carbonate, both of which are extremely stable and insoluble in water, which is a white precipitate.

Hazards of water alkali:

Water alkali has a carcinogenic risk.

It is easy to cause gastrointestinal digestion and absorption disorders and constipation, which increases the incidence of gastritis and various stones. Tartar and periodontitis are often caused by limescale.

And scale is insoluble in water is only relative, after the water is heated, some of the precipitation will be dissolved, which will form the precipitated heavy metal ions into the water again, so that the content of heavy metal ions in the water exceeds the requirements of health standards, endangering human health, such as calcium carbonate, magnesium carbonate in the human body a large number of deposits are easy to form stones.

Removal method of water alkali:

1. Wrap a small ball of absorbent cotton with gauze, or use a piece of peeled, seeded, and washed coarse loofah pulp, and put it in the kettle when boiling water, the water alkali will be adsorbed on the cotton ball or enter the loofah pulp, and the bottom of the pot and the wall of the pot will be less scaling; After using it for a period of time, there is more water alkali in the cotton ball and loofah, which can be taken out and washed off with water before being used or replaced with a new one in due course. The easiest way to do this is to use water purification facilities at home.

2. Put apples and hawthorns into the scaled kettle, plug the lid and spout tightly, and leave it for about 10 days, and the water alkali in the kettle is soft and easy to remove; If you cut the apple peel and hawthorn, add water and boil for an hour or two, the descaling effect is faster. After putting some potatoes in the pot and boiling for a few hours, the limescale will crack and fall off.

3. Put a magnet in the pot and then boil the water, which can also make the scale crack and fall off.

1.The floating matter in boiled water is water alkali, and a small amount of water alkali floats on the surface of the water in boiled boiled water, which can be drunk.

2.Water alkali: water alkali, that is, scale, the main components are calcium carbonate and magnesium hydroxide, calcium and magnesium ions in water are combined with bicarbonate ions to form magnesium bicarbonate and calcium bicarbonate, magnesium bicarbonate is unstable and eventually converted into magnesium hydroxide, calcium bicarbonate is converted into calcium carbonate, both are extremely stable, and insoluble in water, is a white precipitate.

3.This is mainly because of the accumulation of scale at the bottom of the kettle or pot, if you want to **, you can regularly clean it with a little vinegar mixed with water and a pinch of edible salt, which can greatly reduce the gray calcium of sleep.

4.And scale is insoluble in water is only relative, after the water is heated, some of the precipitation will be dissolved, which will form the precipitated heavy metal ions into the water again, so that the content of heavy metal ions in the water exceeds the requirements of health standards, endangering human health, such as calcium carbonate, magnesium carbonate in the human body a large number of deposits are easy to form stones.

Floating objects may also be dodecylbenzene, which is the decomposition product of our household laundry detergent, after our laundry detergent enters the river, it is mainly sodium dodecylbenzene sulfonate, when heated with water, under the action of hydrochloric acid (when boiling water, a small amount of hydrochloric acid will be produced), the sulfonic acid group is removed, and dodecylbenzene is generated, the density is about about that, floating on the water surface.