Iron pot is not elemental, does iron pot contain other chemicals?

The second floor said a lot.........

You remember one thing: in everyday life, the vast majority of objects are mixtures! Elemental words ......24k** can be regarded as a simple ......The metals usually used are alloys, hehe.........

Of course, the iron pot is not elemental, because it is not made of pure iron, and in order to strengthen its hardness, heat resistance, etc., substances such as C (charcoal) are added to it, so it is not elemental.

There is carbon in the iron pan and is a mixture.

Iron pots are mostly made of pig iron, which generally does not contain other chemicals, and iron pots are currently the safest kitchenware. In the process of stir-frying and cooking, there will be no dissolution in the iron pot, and there will be no problem of falling off, even if there is iron dissolution, it is good for the human body to absorb it.

In terms of materials, iron pots are mainly divided into fine iron pots and cast iron pots. The cast iron pot is what we often call a cast iron pot.

The pig iron pot is made of gray iron melting and casting, with slow heat transfer and uniform heat transfer, but the pot ring is thick, the texture is rough, and it is easy to crack; The fine iron pot is made of black iron forging or hand hammering, which has the characteristics of thin pot ring, fast heat transfer and exquisite appearance. For the average family, it is better to use a cast iron pot.

The pig iron pot has a characteristic, when the temperature of the fire exceeds 200, the pig iron pot will control the temperature transmitted to the food at 230 by emitting a certain amount of heat energy, while the fine iron pot directly transmits the temperature of the fire to the food.

However, the fine iron pot also has advantages, first, because it is made of fine iron, there are few impurities, therefore, the heat transfer is relatively uniform, and it is not easy to stick to the pan. Second, due to the good materials, the pot can be made very thin, and the temperature inside the pot can reach higher. Third, the grade is high, the surface is smooth and green, and the cleaning work is easy to do.

There is a knack for buying and using.

Whether it is a pig iron pot or a fine iron pot, how should consumers choose and use an iron pot?

A "look" to see whether the pot surface is smooth, but can not require the light to be as slippery as a mirror, due to the casting process.

As a result, the iron pot has irregular shallow lines. The defective and small protruding parts are iron, which has little impact on the quality of the pot, but the small pits are more harmful to the quality of the pot, so you need to pay attention to it when purchasing. Second, "listen", the uneven thickness of the pot is not good, when buying, you can turn the bottom of the pot to the sky, use your fingers against the center of the concave surface of the pot, and knock it with a hard object.

The louder the pot sound, the greater the vibration, the better. In addition, the pot with rust spots does not necessarily mean that the quality is not good, the pot with rust spots indicates that the storage time is long, and the longer the pot is stored, the better, so that the internal organization of the pot can be more stable, and it is not easy to crack when it is first used.

Ordinary iron pans are prone to rust if the body absorbs too much iron oxide.

That is, rust, will cause harm to the liver, so it is not advisable to hold food overnight. At the same time, try not to cook soup in an iron pot, so as not to disappear the cooking oil layer on the surface of the iron pot that protects it from rust. Detergent should also be used as little as possible when brushing the pot to prevent the protective layer from being brushed out.

After brushing the pot, try to wipe the water in the pot to prevent rust. If there is a slight rust, you can use vinegar to clean it. When stir-frying in an iron pot, stir-fry quickly and add less water to reduce the loss of vitamins.

Finally, it is not advisable to cook bayberry in an iron pot.

Hawthorn, begonia and other acidic fruits. Because these acidic fruits contain fruit acids.

When it encounters iron, it causes a chemical reaction.

Low-iron compounds are produced, which can cause poisoning when eaten. Cook mung beans in an iron pot because of the tannins contained in the bean skin.

After encountering iron, a chemical reaction will occur to produce black iron tannins, and the soup of mung beans will turn black, affecting the taste and digestion and absorption of the human body.

1) The metal element contained in the iron pot is Fe, and the organic synthetic material contained in it is plastic 2) The oil in the iron pot can be extinguished with a lid when stir-frying, and the principle is to isolate the oil seepage from oxygen in the simple section 3) Although the iron of the stove does not react with water at room temperature, the used iron pot is easy to rust if it is not cleaned in time The reason is that the iron is in contact with oxygen and water in the air at the same time;

4) According to the order of metal activity, the activity strength of the five kinds of gold barrage is zinc, iron, tin, copper, and silver, according to the analysis, in order to avoid corrosion of the steel shell of the ship, the metal usually inlaid on the hull of the ship is zinc plate

Therefore, the answer is: (1) Fe, plastic; (2) isolate oil from oxygen; (3) oxygen; Water; （4）d．

(1) The iron pot is an alloy of iron, containing elemental iron and some other elements, and the chemical formula of iron is: Fe (2) The oil can be extinguished with a lid lid when the oil is ignited, and the fire extinguishing principle of isolating oxygen is used (3) The density of aluminum is small, so the aluminum pot is light; At room temperature, a dense alumina film is formed on the surface of the reaction with oxygen to prevent further oxidation of aluminum, so the aluminum pot is more durable

4) The use of waste iron pots and aluminum pots can reduce environmental pollution, and can also save a large amount of fossil fuels such as coal and iron ore and other ore resources used in metal smelting

Therefore, the answer is: (1) fe; (2) Isolation of oxygen; (3) Low density; At room temperature, it is easy to react with oxygen to form a dense alumina film on the surface to prevent further oxidation of aluminum; (4) Reduce environmental pollution, save resources, etc