Corrosion Inhibitor for metal corrosion prevention
Inorganic substances such as phosphates, chromates, dichromates, silicates, borates, tungstates, molybdates, and arsenates have been found effective as inhibitors of metal corrosion. Pyrrole and derivatives are believed to exhibit good protection against corrosion in acidic media. Corrosion is the deterioration of metal by a chemical attack or reaction to its environment. It is a constant and continuous problem, often difficult to eliminate completely. Prevention would be more practical and achievable than complete elimination. Corrosion processes develop fast after disruption of the protective barrier and are accompanied by a number of reactions that change the composition and properties of both the metal surface and the local environment, for example, formation of oxides, diffusion of metal cations into the coating matrix, local pH changes, and electrochemical potential. The study of corrosion of mild steel and iron is a matter of tremendous theoretical and practical concern and as such has received a considerable amount of interest. Acid solutions, widely used in industrial acid cleaning, acid descaling, acid pickling, and oil well acidizing, require the use of corrosion inhibitors in order to restrain their corrosion attack on metallic materials.
Role of Corrosion Inhibitors in Metal Corrosion Prevention
Over the years, considerable efforts have been deployed to find suitable corrosion inhibitors of organic origin in various corrosive media. In acid media, nitrogen-based materials and their derivatives, sulfur-containing compounds, aldehydes, thioaldehydes, acetylenic compounds, and various alkaloids, for example, papaverine, strychnine, quinine, and nicotine are used as inhibitors. In neutral media, benzoate, nitrite, chromate, and phosphate act as good inhibitors. Inhibitors decrease or prevent the reaction of the metal with the media. They reduce the corrosion rate by
- Adsorption of ions/molecules onto the metal surface
- Increasing or decreasing the anodic and/or cathodic reaction
- Decreasing the diffusion rate for reactants to the surface of the metal
- Decreasing the electrical resistance of the metal surface
- Inhibitors that are often easy to apply and have in situ application advantage.
Several factors including cost and amount, easy availability and most important safety to the environment and its species need to be considered when choosing an inhibitor.
Corrosion Inhibitors for metal corrosion prevention manufacturer supplier exporter in India, UAE Middle East, Canada
RX Marine International is the most reputed corrosion inhibitor manufacturer in India, UAE Middle East, Oman, Canada. RX Marine International is manufacturing supplying and exporting corrosion inhibitors worldwide. The corrosion inhibitors manufactured by the RXSOL brand are used worldwide in various sectors namely, Water Treatment, Oil and Gas fields, Metal and Alloy Corrosion Prevention.
To place bulk orders, mail us at: rakshit@rxmarine.com
Corrosion Inhibitor Anti-corrosion chemical and types of corrosion inhibitors
Corrosion Inhibitor Water Treatment and Oil and Gas Field