volatile corrosion inhibitor

The inhibition effect of the grape pomace extract during the early stage of steel corrosion under adsorbed thin electrolyte layers was investigated. The present study was carried out to identify the components present in the 2-propanol grape pomace extract by GC-MS analysis. Gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization, scanning electron microscopy, and FTIR techniques were used to study the corrosion inhibitive. Polarization measurements have indicated that these green inhibitors acted through mixed type inhibition.

Rape-cake extract was developed as novel volatile corrosion inhibitors. Its volatiles were analysed by GC-MS. A semi empirical approach was used to rationalize the rape-cake extract inhibitory action. The molecular spatial structure, energy gap and density of extract main compounds have been theoretically investigated using HyperChem7.00.