How to make iron materials rust quickly, how to make iron rust?

1.If you can't use strong acid, you can try using acetic acid.

2.In addition, iron and copper rods are lazily tied together (or wound with copper wire), because the activity of iron is large, so this is possible.

to accelerate rusting.

3.In addition, if possible, some deformation is made on the iron, because the partial bond of the atom at the deformation or bend is weakened by bending, so that the atom energy is higher, the activity is increased, and it is easier to rust.

4.Heating at the end will increase the reaction rate and will also shorten the time for rusting.

The rate of iron rusting is arranged as follows:

1. The iron is connected to the negative pole of the power supply.

2. Iron is connected to more reactive metals.

3. Iron in a dry environment.

4. Iron in a humid environment (water).

5. Iron in electrolyte solution.

6. Iron is connected to inactive metals in water or water electrolyte solution.

7. The iron is connected to the positive electrode of the power supply, and the negative electrode of the power supply is in water or electrolyte solution at the same time as the iron.

So the fastest is 7.

Connect the smooth copper sheet and the iron sheet with copper wire, insert it into the water about 2 3, add a little salt to the water, and heat it to boil the water.

The quickest way is to lick with your tongue.

And keep it moist.

Pay attention to hygiene.

Tie iron to aluminum, soak it in salt water, and let part of it touch the air!

Repeated heating and cooling in a humid and ventilated environment or burning it in oxygen

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.

1. Use a rock tan brush or detergent to remove the rust that has rusted on the iron.

2. Through electroplating, hot-dip plating and sputtering, corrosion-resistant metals such as zinc and aluminum are plated on the surface of iron products, which can effectively separate coarse and dry tung from water and air to prevent corrosion.

3. Try to keep the environment dry and not expose the iron products to a humid environment, which can prevent surface oxidation and rust.

4. Avoid contact with the catalyst, acid can accelerate the oxidation of iron, avoid iron exposure to acid, and prevent surface oxidation and rust.

5. Coating mineral oil, paint or firing enamel, spraying on the surface of iron products, etc. For example, carriages, buckets, etc. are often painted; The machine is often coated with mineral oil, etc.

6. Plating a layer of metal that is not easy to rust, such as zinc, tin, chromium, nickel, etc., is plated on the surface of steel by electroplating, hot plating and other methods.

7. Use chemical methods to generate a dense and stable oxide film on the surface of iron products to prevent iron products from rusting.

8. Keeping the surface of iron products clean and dry is also a good way to prevent rust of iron products.

9. Alloy is formed to change the internal structure of iron. For example, adding chromium, nickel and other metals to ordinary steel to make stainless steel greatly increases the rust resistance of steel products.

10. Smearing petroleum jelly, or calcium hydroxide, is also a way to prevent rust in iron products.