Why corrosion inhibitors is used in the industry?

A corrosion inhibitor or anti-corrosive is a chemical compound that, when added to a liquid or gas, reduces the rate of corrosion of material, often metal or alloy, that comes into contact with the fluid. The effectiveness of a corrosion inhibitor depends on fluid composition, quantity of water, and flow regime. Corrosion inhibitors are common in the industry, and also found in over-the-counter products, typically in spray form in combination with a lubricant and sometimes a penetrating oil. They may be added to water to prevent the leaching of lead or copper from pipes.
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