Organic corrosion inhibitors for copper and brass — A review
| Main Authors: | M. M. Nandi, Ranu Banerjee |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2014
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5720275 |
Daftar Isi:
- Department of Chemistry, National Institute of Technology, Durgapur-713 209, West Bengal, India E-mail : murarimohan_nandi@yahoo.co.in Manuscript received online 01 April 2013, revised 27 November 2013, accepted 11 December 2013 The literature dealing with the corrosion of copper and brass and their prevention using organic inhibitors is examined. The inhibition efficiency of an organic molecule depends on several factors and some of them are the shape, aromaticity, bond strength to metal substrate, the presence of hetero atom and number of bonding atoms or groups. Several new inhibitors have been synthesized and attempts have been made to correlate the inhibition efficiency with these factors. Azoles, Schiff bases, amides, amino acids are found to be good corrosion inhibitors for copper and brass in acidic solution. These compounds as well as several imidazoline and hydropyrimidine derivatives can inhibit corrosion of copper and brass satisfactorily in neutral medium containing chloride ions. In alkaline solution compounds containing -SH group may be good inhibitors. Temperature, pH and stability in the aggressive media are also factors related to the efficiency of the inhibitor. Now research area is oriented to the development of green corrosion inhibitors and work on amino acids and their derivatives is increasing.