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Introduction to the chemical properties of aluminum

Release time:

2023-08-11

The chemical properties of aluminum are very active, its affinity with oxygen is very large, and it is easy to form an oxide film on the surface when exposed to the air. This film is very dense and can protect the underlying gold from further corrosion, so aluminum is very resistant to corrosion in the atmosphere. Aluminum not only has corrosion resistance to the atmosphere and water, that is, it has very high corrosion resistance to concentrated sulfuric acid Q, liquic acid or all other organic acids, but hydrochloric acid has a high solubility in aluminum. The force is very strong, and solutions such as alkali, ammonia and lime milk Q are easy to destroy the alumina film, so it must be noted in the process of storage and use that aluminum cannot be put together with these substances. Aluminum has a low potential, and when it is in contact with a high-potential metal and there is electrolyte Q, it will form a microbattery, in which case aluminum will soon be corroded, so it is necessary to avoid contact with high-potential metal when it is stored.

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