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3. Additives that act chemically on surfaces
3.1 Deactivator and passivator corrosion inhibitors
In lubrication practice, additives designed to combat corrosion in general are referred to as "anti-rust additives" when they combat the wet corrosion of ferrous metals, and as "anti-corrosive additives" or corrosion inhibitors when they are designed to combat the acid or sulfur corrosion of non-ferrous metals, particularly copper alloys.
The corrosion inhibitors studied in this paragraph also have an antioxidant action as seen in paragraph 2.1.4
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Additives that act chemically on surfaces
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