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Magnetic material iron shelf corrosion rust principle

Except the magnetic strength of magnetic materials. It also relates to the hygienic degree of iron shelves. Especially the problem of rust. Let's talk about corrosion of iron shelf rust. The sulfur dioxide, hydrogen sulfide, and chlorine in the atmosphere will promote metal corrosion. For example, sulfur dioxide is easily oxidized on the surface of iron and dissolves into sulfuric acid in water to promote corrosion. Sulfuric acid reacts with iron to form ferrous sulfate, which in turn produces iron sulfate under the action of oxygen. The generated iron sulfate is hydrolyzed to produce sulfuric acid and continues to promote corrosion. In this way, one molecule of sulfuric acid does not corrode only one iron atom. According to data, one molecule of sulfuric acid must corrode at least 100 iron atoms. Therefore, all kinds of dust and corrosive gases in the industrial atmosphere are extremely harmful to metals.

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