Copper dissolution in acidic sulphate media studied by QCM and rrde under ac signal

1992 ◽  
Vol 37 (12) ◽  
pp. 2195-2201 ◽  
Author(s):  
A. Jardy ◽  
A. Legal Lasalle-Molin ◽  
M. Keddam ◽  
H. Takenouti
Keyword(s):  
Copper Dissolution ◽  
Sulphate Media ◽  
Acidic Sulphate

Copper corrosion behaviour in acidic sulphate media in the presence of 5-methyl-1H-benzotriazole and 5-chloro-1H-benzotriazole

2015 ◽  
Vol 0 (0) ◽  
Author(s):  
Zaklina Z. Tasic ◽  
Milan M. Antonijevic
Keyword(s):  
Mass Loss ◽  
Acidic Medium ◽  
Open Circuit Potential ◽  
Corrosion Behaviour ◽  
Open Circuit ◽  
Chloride Ions ◽  
Copper Corrosion ◽  
Potentiodynamic Polarisation ◽  
Sulphate Media ◽  
Acidic Sulphate

AbstractThe influence of 1H-benzotriazole, 5-methyl-1H-benzotriazole and 5-chloro-1H-benzotriazole on copper corrosion in an acidic sulphate medium was studied, as well as the influence of chloride ions on the corrosion behaviour of copper. The methods used were potentiodynamic measurements, open circuit potential and mass loss. The results show that the examined compounds possess good inhibitory properties in an acidic medium. The potentiodynamic polarisation results indicate that the degree of copper protection against corrosion depends on the concentration of Cl

Kinetics of the manganese(III)-oxalate reaction in acidic sulphate media

1993 ◽  
Vol 18 (2) ◽  
pp. 218-220 ◽  
Author(s):  
L'ubica Adamčíková ◽  
Adriana Krížová ◽  
Ivan Valent
Keyword(s):  
Sulphate Media ◽  
Kinetics Of ◽  
Acidic Sulphate

Copper Dissolution in 1M Sulphate Media Studied by Electrochemical Impedance

1992 ◽  
Vol 111-112 ◽  
pp. 345-358 ◽  
Author(s):  
G.G.O. Cordeiro ◽  
E. D'Elia ◽  
O.E. Barcia ◽  
O.R. Mattos
Keyword(s):  
Electrochemical Impedance ◽  
Copper Dissolution ◽  
Sulphate Media

Inhibition of copper corrosion in acidic sulphate media by eco-friendly amino acid compound

2014 ◽  
Vol 68 (3) ◽  
Author(s):  
Ana Simonović ◽  
Marija Petrović ◽  
Milan Radovanović ◽  
Snežana Milić ◽  
Milan Antonijević
Keyword(s):  
Corrosion Inhibitor ◽  
Open Circuit ◽  
Sodium Sulphate ◽  
Copper Electrode ◽  
Sulphate Solution ◽  
Protective Film ◽  
Copper Corrosion ◽  
Sulphate Media ◽  
Acid Compound ◽  
Acidic Sulphate

AbstractThis investigation aimed to study a “green” non-toxic biodegradable copper corrosion inhibitor in an acidic sodium sulphate solution. The methods used in the investigation of cysteine as a copper corrosion inhibitor in an acidic sodium sulphate solution were: potentiodynamic measurements, open circuit potential measurements, and chronoamperometric measurements. Optical microscopy was used in addition to electrochemical methods. Potentiodynamic measurements show that cysteine has good inhibitory properties in an acidic medium. Polarisation curves indicate that the presence of cysteine in a sulphate solution decreases the current density and that using various cysteine concentrations results in the formation of a protective film on the surface of the electrode due to the formation of the Cu(I)-cys complex. These results are confirmed by chronoamperometric measurements. Furthermore, it is clear from microphotographs that a protective film does form on copper electrode in the presence of cysteine. The Langmuir adsorption isotherm indicates that cysteine is chemisorbed on the surface of the electrode.

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