What liquids can make metal rust fast?

Iron --- Plan 1:

2 volumes of 1:1 hydrochloric acid + 1 volume of 1:1 hydrogen peroxide.

Hydrochloric acid is diluted with 37% concentrated hydrochloric acid, and hydrogen peroxide is diluted with 30% hydrogen peroxide) Scheme 2: concentrated oxalic acid.

Because hydrochloric acid is not always available, oxalic acid may reflect more slowly.

Scheme 3: Concentrated phosphoric acid + 30% hydrogen peroxide and other volume mixing.

Aluminum: 20% sodium hydroxide is sufficient.

Copper: 1:1 nitric acid (produces toxic gases).

Or. 2 volumes of 1:1 hydrochloric acid + 1 volume of 1:1 hydrogen peroxide.

Hydrochloric acid is diluted with 37% concentrated hydrochloric acid and hydrogen peroxide is diluted with 30% hydrogen peroxide).

Sodium chloride solution, dilute hydrochloric acid, ferric chloride.

Generally, metals are alloys or can form galvanic cells with other conductors (such as carbon), which will accelerate corrosion, so theoretically the electrolyte solution has the effect of accelerating corrosion for metal devices, and the simplest salt water.

Also,I don't understand why it's in a syringe...

In addition, I would like to ask if the fifth floor is sure to make the iron rust? I guess those things will be gone if you throw them in.

The reason why dry batteries are called dry batteries is that their electrolyte cannot flow at will, and if you don't have a good way, it is more difficult to take it out and use it elsewhere.

What metal are you going to rust? Generally, it is to study how to prevent metal rust.

The cause of metal rust is mainly the action of electrochemical corrosion and air oxidation, and pure metal or active metal is mainly due to the oxidation reaction between the metal surface and the oxygen in the air, and the metal oxide is generated on the metal surface, that is, rust. If the metal contains more impurities, these impurities will form a chemical galvanic battery with the metal, and electrochemical corrosion will occur, thereby oxidizing the metal to form metal oxides.

Some metals, such as alumina, can rust and produce a dense oxide film that prevents further oxidation. However, the thinning of the oxide film produced after the rusting of some metals accelerates the oxidation of the metal, such as rust.

<> remove rust acidic chemicals, commonly used acids are sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, hydrofluoric acid, chromic anhydride, citric acid, oxalic acid, amino sulfuric acid.

Chemical rust removal is the use of pickling to make it chemically react with rust, so that the rust composition is changed to ferric chloride or iron sulfate, so as to achieve the purpose of rust removal. Chemical rust removal is a method that uses chemical reaction to dissolve general rust, oxide scale and various corrosion products from the surface of the workpiece without affecting the base metal. Inorganic acids and organic acids are commonly used as rust removal materials, so they are often called pickling.

1. Soak the steel in hydrogen peroxide, and it will rust quickly.

2. Rust is a chemical reaction, which is essentially an oxidation reaction of metals.

3. Rust is a kind of chemical destruction reaction, and it will rust when the iron is left for a long time. Iron is susceptible to rust, not only because of its chemical activity, but also because of the external conditions. Moisture is one of the substances that makes iron rust easily.

However, only water does not rust iron, and only when the oxygen in the air is dissolved in the water, the oxygen reacts with the iron in the environment with water to form iron oxide, which is the iron rust.

4. Rust is a brownish-red substance, it is not as hard as iron, it is easy to fall off, and after a piece of iron is completely rusted, the volume can be expanded by 8 times. If the rust is not removed,

1. Soak the steel in hydrogen peroxide, and it will rust quickly.

2. Rust is a chemical reaction, which is essentially an oxidation reaction of metals.

3. Rust is a chemical reaction, and it will rust when the iron is released for a long time. Iron is susceptible to rust, not only because of its chemical activity, but also because of external conditions. Moisture is a substance that makes iron rust easily.

However, only water does not rust iron, and only when oxygen in the air is dissolved in water, the oxygen reacts with iron in an environment with water to form iron oxide, which is rust.

4. Rust is a brownish-red substance, it is not as hard as iron, it is easy to fall off, and after a piece of iron is completely rusted, the volume can be expanded by 8 times. If the rust is not removed,

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.

Coating mineral oil, paint or firing enamel, spraying, etc., such as: cars, buckets, etc. are often painted; The machine is often coated with mineral oil, etc.

3. Electroplating method.

The surface of iron products is plated with a layer of metal that is not easy to rust, such as zinc, tin, chromium, nickel, etc. These metal surfaces form a dense oxide film, which prevents 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.