The effect of Zn 2+ ion in promoting inhibitive property of phenolphthalein
| Autor: | S. Rajendran, J. Sathiyabama, B. Shyamaladevi, J. Jeyasundari |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
inorganic chemicals
General Engineering corrosion inhibition Phenolphthalein Ion chemistry.chemical_compound chemistry Carbon steel lcsh:TA1-2040 lcsh:Technology (General) lcsh:T1-995 lcsh:Engineering (General). Civil engineering (General) dyes and synergistic effect phenolphthalein Nuclear chemistry |
| Zdroj: | Journal of Engineering Science and Technology Review, Vol 3, Iss 1, Pp 27-31 (2010) |
| ISSN: | 1791-2377 1791-9320 |
| DOI: | 10.25103/jestr.031.05 |
| Popis: | The inhibition efficiency of phenolphthalein in controlling corrosion of carbon steel immersed in well water has been evaluatedby mass loss method both in absence and presence of zinc ion. A synergistic effect exists between phenolphthalein (PN)and Zn2+. The inhibition efficiency (IE) of the PN – Zn2+ system decreases with increase in immersion period. Addition ofN-Cetyl-N, N, N-Trimethylammlonium bromide (CTAB) sodium dodecyl sulphate (SDS), sodium sulphite (Na2SO3) doesnot change the excellent inhibition efficiency of the PN-Zn2+ system. Polarization study suggests that the Pn-Zn2+ systemfunctions as a mixed inhibitor system. AC impedance spectra reveal the presence of a protective film on the metal surface.FTIR spectra indicate that the protective film consists of Fe2+-PN complex and Zn(OH)2. |
| Databáze: | OpenAIRE |
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