β-enaminoesters as novel corrosion inhibitors for carbon steel in acidic medium
Creators
- 1. Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropédica, RJ (Brazil)
Description
In this work, two β-enaminoesters, EN1 and EN2, were synthesized, characterized and their anticorrosion effects on American Iron and Steel Institute (AISI) 1020 carbon steel in 0.5 mol L-1 HCl were investigated using gravimetric and electrochemical methods. The results revealed that both compounds inhibit corrosion. Good correlations were observed between results obtained for gravimetric and electrochemical methods. EN1 exhibited highest efficiency of 98% after 24 h of immersion in HCl solution. The adsorption of compounds on steel surface followed the modified Langmuir adsorption isotherm. Surface morphology of carbon steel was examined using scanning electron microscopy showing that the metal surface was protected by EN1 as inhibitor of corrosion. (author)
Availability note (English)
Available from http://jbcs.sbq.org.br/imagebank/pdf/2018-0152AR.pdfAdditional details
Identifiers
Publishing Information
- Journal Title
- Journal of the Brazilian Chemical Society
- Journal Volume
- 29
- Journal Issue
- 12
- Journal Page Range
- p. 2542-2553
- ISSN
- 0103-5053
- CODEN
- JOCSET
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 49097972
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CARBON 13; CARBON STEELS; CORROSION; ELECTROCHEMISTRY; GRAVIMETRIC ANALYSIS; HYDROGEN 1; NUCLEAR MAGNETIC RESONANCE; SCANNING ELECTRON MICROSCOPY
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CARBON ISOTOPES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; CHEMISTRY; ELECTRON MICROSCOPY; EVEN-ODD NUCLEI; HYDROGEN ISOTOPES; IRON ALLOYS; IRON BASE ALLOYS; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; MICROSCOPY; NUCLEI; ODD-EVEN NUCLEI; QUANTITATIVE CHEMICAL ANALYSIS; RESONANCE; STABLE ISOTOPES; STEELS; TRANSITION ELEMENT ALLOYS