Thermal analysis and FTIR studies of volatile corrosion inhibitor model systems
Source abstract
Abstract
Abstract Model compounds simulating amine–carboxylic acid-based volatile corrosion inhibitors were characterized by thermogravimetric analysis and Fourier transform infrared spectroscopy. These systems are usually employed as equimolar mixtures to protect ferrous metals against atmospheric corrosion. The key finding of this study was that the vapors released by such equimolar mixtures initially contain almost free amine only. After prolonged vaporization a steady-state azeotrope-like composition is approached. It contains excess carboxylic acid and features impaired corrosion inhibition efficiency according to the Skinner test. In part, this behavior can be attributed to the mismatch in the volatilities of the amine and carboxylic acid constituents.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Thermal and Kinetic Analysis · Chemical Thermodynamics and Molecular Structure
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Sastri · 1998
2. Volatile corrosion inhibitors: a review10.1108/00035590510584771 ↗
3. A new method for quantitative evaluation of volatile corrosion inhibitors10.1016/0010-938X(93)90376-R ↗
4. Introduction to vapour phase corrosion inhibitors in metal packaging10.1179/026708404225016481 ↗
5. Physicochemical aspects of the action of volatile metal corrosion inhibitors10.1070/RC2005v074n08ABEH001162 ↗
6. Inhibition of the corrosion of iron by benzoate and acetate ions10.1179/000705974798321152 ↗
7. Formation and behaviour study of an environment-friendly corrosion inhibitor by electrochemical methods10.1016/j.electacta.2005.06.001 ↗
8. Ahmad · 2006
9. Amine carboxylates as vapour phase corrosion inhibitors10.1179/000705902225002385 ↗
10. C. Fiaud, Theory and Practice of Vapour Phase Inhibitors, in: Corrosion Inhibitors, European Federation of Corrosion Publications, No. 11, Institute of Materials, London, 1994, pp. 1–11.
11. Evaluation of vapour phase corrosion inhibitors10.1179/000705999101500806 ↗
12. S.C. Byrne, A.C. Miller, Atmospheric Corrosion of Metals, ASTM, STP768, 1982, pp. 359373.
13. Development and testing of all organic volatile corrosion inhibitors10.5006/1.3277627 ↗
14. Dicyclohexylamine nitrite as volatile corrosion inhibitor for steel in polluted environments10.5006/1.3280647 ↗
15. Characterizing corrosion behaviour under atmospheric conditions using electrochemical techniques10.1016/S0010-938X(03)00081-7 ↗
16. Synthesis of tertiary amines and their inhibitive performance on carbon steel corrosion10.1016/j.corsci.2006.08.014 ↗
17. The distribution of a volatile corrosion inhibitor (CHC) on corroded Fe10.1016/S0010-938X(72)80089-1 ↗
18. Organic compounds as corrosion inhibitors in different environments – a review10.1016/0033-0655(81)80009-X ↗
19. The performance of VPI-coated paper for temporary corrosion prevention of metals10.1108/00035590210440737 ↗
20. Use of vapour phase corrosion inhibitors in packages for protecting mild steel against corrosion10.1016/j.corsci.2009.01.015 ↗
21. On the effect of OH− ions on the inhibition of steel corrosion with amines10.1023/B:PROM.0000028919.93203.af ↗
22. Protic ionic liquids with ammonium salts as lubricants for magnetic thin film media10.1007/s11249-008-9355-9 ↗
23. New corrosion inhibitors based on fatty materials-II. Epoxidized fatty materials modified with aromatic amines10.1016/0010-938X(82)90052-X ↗
24. Thermodynamic properties of gas-phase hydrogen-bonded complexes10.1021/cr00088a002 ↗
25. On the thermodynamics of the acetic acid-triethylamine system10.1021/j100663a025 ↗
26. Some aspects of the structure and interaction potential of hydrogen bonded complexes10.1016/0001-8716(76)80016-8 ↗
27. Infrared studies of complexes between carboxylic acids and tertiary amines in argon matrices10.1039/f29807600834 ↗
28. Molecular interactions in mixtures of carboxylic acids with amines. 1. Melting curves and viscosities10.1021/j150617a021 ↗
29. Molecular interactions in mixtures of carboxylic acids with amines. 2. Volumetric, conductimetric, and NMR properties10.1021/j150617a022 ↗
30. Molecular interactions in nonaqueous cationic system
31. Characterization of the phase behaviour and complexation in heptanoic acid–heptylamime-water system10.1021/jp010727p ↗
32. Complexation in the heptanoic acid–heptylamine system10.1007/s003960050002 ↗
33. TGA–FTIR study of the vapours released by triethylamine–acetic acid mixtures10.1016/j.tca.2012.07.029 ↗
34. Interpretation of infrared spectra, a practical approach
35. Calculated molecular properties for different alkanoic acid–alkylamine complexes: a comparison with measured FTIR and Raman spectra10.1016/S0301-0104(00)00347-5 ↗
36. Estimating the gas permeability of commercial volatile corrosion inhibitors at elevated temperatures with thermo-gravimetry10.1016/j.corsci.2005.05.026 ↗
37. Diffusion controlled evaporation through a stagnant gas: estimating low vapour pressures from thermogravimetric data10.1016/S0040-6031(03)00256-9 ↗
38. On the prediction of the vapor’s pressure of salt-type volatile inhibitors10.1023/A:1013840431304 ↗