The Ionization of Amino Acids in the Solvent Sulfuric Acid

1951 ◽  
Vol 73 (9) ◽  
pp. 4264-4267 ◽  
Author(s):  
Joseph L. O'Brien ◽  
Carl Niemann
Keyword(s):  
Amino Acids ◽  
Sulfuric Acid

The Theoretical and Experimental Studies on Oxidation of Straight Chain Amino Acids in Moderately Concentrated Sulfuric Acid Medium

2016 ◽  
Vol 48 (11) ◽  
pp. 647-659 ◽  
Author(s):  
Homayoon Bahrami ◽  
Gholamreza Jaferian ◽  
Mehdi D. Davari ◽  
Mansour Zahedi ◽  
Ali Akbar Moosavi-Movahedi
Keyword(s):  
Amino Acids ◽  
Sulfuric Acid ◽  
Acid Medium ◽  
Experimental Studies ◽  
Straight Chain ◽  
Sulfuric Acid Medium ◽  
Concentrated Sulfuric Acid

Effect of Amino Acids on the Corrosion of Steel in Sulfuric Acid Solutions

2011 ◽  
Vol 239-242 ◽  
pp. 3142-3145
Author(s):  
Xin Hua Liu ◽  
Qing Hui Wang ◽  
Yu Lan Rui
Keyword(s):  
Amino Acids ◽  
Weight Loss ◽  
Sulfuric Acid ◽  
Phase Angle ◽  
Potentiodynamic Polarization ◽  
Corrosion Behaviour ◽  
Ac Impedance ◽  
Weight Loss Method ◽  
Loss Method ◽  
Sulfuric Acid Solutions

The influence of amino acids on the corrosion behaviour of steel in H2SO4solutions was studied by potentiodynamic polarization, AC impedance and weight-loss. The Potentiodynamic polarization curve results show that compound amino acids are mixed-type inhibitors which inhibit the reactions of anode and cathode; AC impedance results show that the ternary complex inhibitors have a good synergistic effect and high corrosion rate which can be proved by Resistance (Rt), double-layer capacitance (Cdl), Resistance modulus(︱Z︱), and phase angle from the Nyquist chart, Bode chart and phase angle chart. The weight-loss method show that the corrosion efficiency of composite amino acids are over 90% in 0-16 hours, 30-50°Cand 0.4-2.0mol / L sulfuric acid.

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