Testing the effectiveness of raspberry flower extract as an inhibitor of copper's corrosion in 3% NaCl

Abstract

The paper presents an examination of the possibility of applying raspberry flower extract (Rubus idaeus L.) as a green inhibitor of general corrosion of copper in 3% NaCl. Raspberry flowers (Rubus idaeus L.) sort Polka were collected from the Moševac near Maglaj city, Bosnia and Herzegovina. Raspberry flower extract in ethanol was obtained by ultrasonic extraction. A significant content of polyphenol was found in the raspberry flower extract by UV/VIS spectrophotometry analysis. Results obtained by DC techniques (by the methods of Tafel extrapolation, potentiodynamic polarization and linear polarization) prove that the corrosion rate decreases in the presence of the raspberry flower extract. Tests performed by the method of electrochemical impedance spectroscopy prove that the tested extracts slow down the kinetics of the corrosion process, which is visible through the increase in resistance. The results of the conducted tests prove that in an aggressive medium, such as 3% NaCl solution, Polka raspberry flower extract can be used as an inhibitor of copper's corrosion.

Influence of a paint coating on the corrosion of hull plates made of mild steel in natural seawater

“…The influence of a paint, namely Nippon paint, weatherbond advance, on the corrosion resistance of hull plate made of mild steel in seawater has been investigated by electrochemical methods such as polarization study and AC impedance spectra [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

Influence of a Show Case Polish Coating on Corrosion Resistance of Mild Steel in Simulated Concrete Pore Solution

“…Nyquist plots favoured increased Rct values suggesting the formation of barrier film. Efficiency of corrosion inhibitors in mitigating corrosion of steel under elevated temperature and chloride concentration has been reported by Al-Sodani et al 12 It has been reported that an increase in the temperature or chloride concentration increased the rate of corrosion. The present work is undertaken to study the corrosion resistance of mild steel in simulated concrete pore solution (SCPS), before and after the presence of showcase polish coating.…”

“…Electrochemical studies such as polarization study and AC impedance spectra 1,2,3,4,5,9,10,11,12,16,17,20,21,24,25,27,28,29 are useful in measuring the corrosion resistance of mild steel in various test solutions.…”

Corrosion resistance of orthodontic wire made of nickel-titanium alloy in artificial saliva in the presence of Kopiko candy

“…Polarization study and AC impendence spectra have been widely used in evaluating corrosion resistance of metals and alloys [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. The influence of Kopiko candy on corrosion resistance of Ni-Ti alloy in artificial saliva (AS), has been investigated by polarization study and AC impendence spectra.…”