Anodic Protection of Mild Steel in Nitric Acid

CORROSION ◽  
1983 ◽  
Vol 39 (2) ◽  
pp. 55-60 ◽  
Author(s):  
T. P. Sastry ◽  
V. V. Rao
Keyword(s):  
Nitric Acid ◽  
Mild Steel ◽  
Anodic Protection

scholarly journals Piper Nigrum Extract as an Environmentally-Safe Inhibitor for the Prevention of Mild Steel in 1.5 M Nitric Acid Medium

2021 ◽  
Vol 13 (1) ◽  
pp. 237-242
Author(s):  
N. Balamurugapandian
Keyword(s):  
Electron Microscope ◽  
Nitric Acid ◽  
Scanning Electron Microscope ◽  
Mild Steel ◽  
Acid Medium ◽  
Inhibition Efficiency ◽  
Black Pepper ◽  
Piper Nigrum ◽  
Nitric Acid Medium ◽  
Scanning Electron

Piper nigrum has extensively explored for its biological properties and its bioactive phyto-compounds. The corrosion prevention of mild steel by Piper nigrum extract (black pepper) using 1.5 M nitric acid medium was examined by the weight-loss method, scanning electron microscope (SEM) examination. The consequences of the study reveal that the dissimilar concentrations of extract prevent mild steel corrosion in acidic medium. The Inhibition efficiency of the extract is found to vary with concentration, temperature, and time of immersion. The inhibition efficiency of the extract was directly proportional to the concentration but inversely proportional to the temperature. Scanning electron microscope experiments exhibit the adsorption of the inhibitory properties of black pepper extract on the surface of the mild steel and show the evidence for the protection of Mild steel by the eco-friendly inhibitor. FTIR values also show evidence for the inhibition of Mild Steel.

scholarly journals Corrosion Inhibition of Mild Steel in Nitric Acid Media by some Schiff Bases Derived from Anisalidine

2013 ◽  
Vol 15 (1) ◽  
pp. 61-67 ◽  
Author(s):  
N. Saxena ◽  
S. Kumar ◽  
M.K. Sharma ◽  
S.P. Mathur
Keyword(s):  
Nitric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Schiff Bases ◽  
Inhibition Efficiency ◽  
Acid Strength ◽  
Inhibitor Concentration ◽  
Acid Media ◽  
Polarization Technique ◽  
Inhibition Performance

Corrosion inhibition performance of mild steel in nitric acid solution containing different concentration of anisalidine derivative Schiff bases viz. N- (4-nitro phenyl) p-anisalidine (SB1), N- (4-chloro phenyl) p-anisalidine (SB2), N- (4-phenyl) p-anisalidine (SB3), N- (4-methoxy phenyl) p-anisalidine (SB4), N- (4-hydroxy phenyl) p-anisalidine (SB5) has been investigated using mass loss, thermometric and potentiostate polarization technique. Inhibition efficiencies of Schiff bases have been evaluated at different acid strength. The inhibition efficiency was found larger than their parent amines. Inhibition efficiencies of synthesized Schiff bases increase with inhibitor concentration. Inhibition efficiency increases up to 98.32% with ansalidine derivative Schiff base.

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