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A corrosion inhibitor or anti-corrosive is a chemical compound added to a liquid or gas to decrease the corrosion rate of a metal that comes into contact with the fluid. [1] The effectiveness of a corrosion inhibitor depends on fluid composition and dynamics .
Nitrite is also an oxidizing species and has been used as corrosion inhibitor since the 1950's. [17] [18] [19] Under the basic conditions prevailing in concrete pore water nitrite converts the relatively soluble Fe 2+ ions into the much less soluble Fe 3+ ions, and so protects the carbon-steel reinforcement bars by forming a new and denser ...
Nitrite's success as a corrosion inhibitor for the protection of embedded steel in reinforced concrete comes from the "smart" behavior of the AFm phase (AFm is shorthand for a family of hydrated calcium aluminate hydrate phases: aluminate-ferrite-monosubstituent phases); normally it stores nitrite in preference to sulfate, carbonate, and ...
An alkaline pH has been shown to have a beneficial effect on the corrosion resistance for steel. [6] The mechanism for copper begins the same as for steel, evolution of the inhibitor. Once at the copper surface however, the inhibitor will form a copper benzotriazole complex which is protective. [9]
The results achieved by both these electronic corrosion inhibitor devices point to the need for further research and testing in order to better understand how these devices are able to generate a shift in the potential of the metal panels, i.e., a cathodic effect, in the absence of a continuous electrolytic path required to close the electrical ...
This page was last edited on 3 November 2018, at 02:04 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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