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I want to make the iron less rusty.
1. Keep the surface of the iron dry, be sure to wipe the moisture on the surface of the iron and store it in a dry and ventilated place; 2. Prevent the exposure of iron to the sun, and iron will promote the chemical reaction of iron oxidation when placed under the scorching sun.
This causes rust; 3. Oiling or painting on the surface of iron products can form a protective film to prevent iron from rusting. Ways to prevent iron from rusting.
Generally speaking, iron is easy to rust after being left for a long time. Iron rusts easily, mainly because of its chemical properties.
Lively. At the same time, iron rust has a lot to do with the external conditions in which it is located. For example, moisture is also one of the substances that makes iron rust easily, and iron generally rusts in about a week when it is put in water or when it is humid.
If the rust is not removed in time, the spongy rust is particularly easy to absorb water. In this way, the iron will rot faster. If you want to remove rust from iron products, you can soak it in an acidic solution to dissolve it.
After the rust is removed, the surface of the iron must be treated to prevent it from rusting again. In addition to the above methods, it is also possible to coat the surface of iron products with a layer of lead.
Reapply the paint; Or plating with metal that does not rust easily. A more radical approach is to add some other metals to the iron to make a stainless alloy.
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Step 1: Wipe the water off the iron and place it in a dry environment. Generally, to prevent iron rust is to isolate air and water, if there is nothing particular, wipe it dry with water and apply a layer of oil, if there is rust on the knife, be sure to polish the rust clean.
Step 2: The most used in life is to apply oil, for example, it is best to burn the iron pot for the first time, and then apply it with a small amount of lard to prevent rust. Step 3:
If the iron has rusted, it can be wiped off with white vinegar, and the slight rust can also be wiped with lemon, which can achieve the purpose of removing rust. Use a steel wool ball or a 3m coarse scouring pad.
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The three commonly used methods to prevent iron from rusting are as follows:
1. Coating mineral oil, paint or firing enamel, spraying on the surface of iron products, for example: car parsley, buckets, etc. are often painted; The machine is often coated with mineral oil, etc.
2. Plating a layer of metals that are not easy to rust, such as zinc, tin, chromium, nickel, etc., on the surface of steel. These metal surfaces can form a dense oxide film, which prevents iron products from coming into contact with water, air and other substances and rusting.
3. Use chemical methods to generate a dense and stable oxide film on the surface of iron products to prevent iron products from rusting.
How to remove rust
To remove the rust, you can shovel it off with a variety of tools, or you can soak it in an acidic solution to dissolve it. After removing the rust, the surface of the iron must be treated, coated with a layer of lead, and then painted;
Or plating it with other metals that don't rust easily. A more radical approach is to add some other metals to the iron to make a stainless alloy. The stainless steel we are familiar with is an alloy made by adding a little nickel and chromium to the steel.
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Question 1: How to keep the iron from rusting Don't get wet, don't stick the sweaty **, keep the necklace clean and dry.
Reason: Iron rust is required by two conditions: water and air. Iron will rust in direct contact with them at the same time, and the necklace will definitely come into contact with air when left outside, so consider the water aspect and keep it from getting wet.
Question 2: How to keep iron from rusting for a long time There are three conditions for iron to rust:
1 iron; 2.Oxygen; 3.Water.
Without the latter two conditions, there would be no rust.
One. Isolation of air: electroplating, anti-rust oil, painting, anti-rust liquid, vacuuming, filling with inert gas, etc.
Two. Drying: such as refrigeration, (frozen water) desiccant, high temperature (evaporated water), etc.
Question 4: What is the way to keep iron from rusting? What kind of utensils? The tool can be smeared with some oil.
Question 5: How to make iron not rust, the more ways the better. Urgent!!! There are two necessary conditions for iron to rust, one is contact with oxygen, and the other is contact with water, as long as you avoid iron contact with oxygen and water, it will not rust, and the common method is painting.
Question 6: How to keep iron from rusting? Iron rusting is an oxidation process, so the conditions for iron rusting are: iron is in direct contact with oxygen and water. Rubbing some oil or tripod to keep it dry can reduce rust.
Question 7: How to keep the iron kitchen knife at home from rusting? After each use, apply some oil to the blade to prevent the blade from reacting with the air. Cleaning the blade with vinegar can remove rust because vinegar reacts chemically with rust to remove it.
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Commonly used methods to prevent iron from rusting:
1. Composition alloy method.
Adding some other elements to iron to change the internal structure of iron, such as adding chromium, nickel and other metals to ordinary steel to make stainless steel, greatly increases the rust resistance of steel products.
2. Coating protective layer method.
Coated with mineral oil, paint or fired enamel, spraying, etc., such as: carriages, buckets, etc. are often painted, and machines are often coated with mineral oil.
3. Electroplating method.
On the surface of iron products, a layer of metal that is not easy to rust, such as zinc, tin, chromium, nickel, can form a dense oxide film on the surface of iron products, so as to prevent iron products from rusting in contact with water, air and other substances.
4. Use chemical methods to form a dense oxide film.
A dense and stable oxide film is formed on the surface of iron products by chemical methods to prevent rust of iron products.
5. Keep the iron surface clean.
Keeping the surface of iron products clean and dry is also a good way to prevent iron products from rusting.
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Do you understand how the experiment works?
The result of this experiment is that moisture is one of the conditions that makes iron rust easily. Chemists prove:
In absolutely waterless air, iron does not rust after a few years. However, water alone does not rust iron. It has been tried that if a piece of iron is placed in a boiled, airtight distilled water bottle, the iron will not rust.
Only when the oxygen in the air is dissolved in the water will the iron rust.
You don't have to boil and cool distilled water, and you can't tell if it's the water or the oxygen in the water, so you have to remove impurities and remove the oxygen dissolved in the water.
Comparative experiments on iron rusting].
Place 4 clean nails into each of the 4 tubes. Add a small amount of tap water to the first tube so that one part of the nail is immersed in water and the other part is exposed to air; Add tap water to the second tube and immerse all the nails in the water; Fill the third tube with cooled boiling water and plug the rubber stopper tightly; Add a small amount of quicklime or anhydrous calcium chloride solids to the fourth tube and plug the rubber stopper tightly. Observe and record experimental phenomena.
We will observe that the nail in the first test tube rusts the fastest and the most severe, and after a few days, the part of the nail exposed to the air forms a layer of reddish-brown rust on the surface. In the second tube, the nail rusts slowly and to a lesser extent.
The iron nails in the third and fourth tubes were not rusty. Why is the nail in the first test tube rusted the most? Because steel is composed of iron and contains a small amount of carbon, due to the action of moisture, oxygen, carbon dioxide and other substances in humid air, it is easy to form rust on the surface, and the rust is loose and porous, so that the inner layer of iron continues to be corroded and falls off layer by layer.
The iron in the second tube interacts with the oxygen in the water, and the rust rate is slow because there is less oxygen dissolved in the water. There is almost no oxygen in the third tube, and the small amount of oxygen dissolved in the water is almost completely removed during the boiling process, so the nails do not rust. There is oxygen in the fourth tube, but it is almost anhydrous, and quicklime or anhydrous calcium chloride solids remove moisture from the air, and iron does not react with oxygen at room temperature.
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Put the iron ready to rust in water, add salt or washing powder and soak it for a day, and yellow rust will soon appear on the iron.
Hazards of iron rusting:
1.Affect the operation of life. The impact of iron rust on life is in all aspects, and if the household necessities are rusty, they must be repaired before they can be used.
2.Resulting in a waste of construction materials. As large as the project, it shortens the service life of iron products and affects the overall quality of the project. Because the corrosion of iron can bring various hidden dangers and dangers. Therefore, stainless steel is now used instead of iron.
3.It affects people's lives and health. The main reason why the incidence of liver disease in urban people is higher than that in rural people is that they absorb too much iron oxide, and the most direct and harmful of them is the damage of iron oxide to the human liver.
Therefore, the harm of rust to the human body has always been one of the health topics that experts and scholars pay attention to.
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