Recyclization of Expired Megavit Zinc (MZ) Drug as Metallic Corrosion Inhibitor for Copper Alloy C10100 in Nitric Acid Solution

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Asmaa Abou Elsaoud ◽  
Elsayed M. Mabrouk ◽  
Doaa F. Seyam ◽  
Ali El-Etre
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Corrosion Inhibitor ◽  
Nitric Acid Solution ◽  
Copper Alloy ◽  
Metallic Corrosion

scholarly journals THE EFFECT OF TANNIN ON CARBON STEEL CORROSION IN NITRIC ACID SOLUTIONS

2015 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Anna Sonya Asoka ◽  
Listiani Artha ◽  
Isdiriayani Nurdin ◽  
Hary Devianto
Keyword(s):  
Nitric Acid ◽  
Carbon Steel ◽  
Acid Solution ◽  
Corrosion Inhibitor ◽  
Nitric Acid Solution ◽  
Construction Material ◽  
Steel Corrosion ◽  
Corrosion Mechanism ◽  
Acid Solutions ◽  
Nitric Acid Solutions

Carbon steel is commonly used as construction material of processing equipment due to its strength, ease of fabrication, and low cost. Nevertheless, carbon steel is susceptible to corrosion by process fluid, like nitric acid. However, corrosion effect can be reduced by inhibitor addition. Tannin is one of carbon steel corrosion inhibitors in acidic solution. Tannin is an organic compound which has hidroxyl and carboxyl functional groups, decomposed easily, and non-toxic. The aim of this research is to determine the effectiveness of tannin as a corrosion inhibitor for carbon steel in nitric acid solutions. The corrosion rate is determined using the Tafel method, whereas the corrosion mechanism is predicted by cyclic voltammetry. The results showed that tannin is ineffective to inhibit carbon steel corrosion in nitric acid solution. The carbon steel corrosion reaction in nitric acid solution, with or without tannin addition, is reversible, involving single step oxidation-reduction reaction, resulting stable corrosion product, and not forming any passivation.Keywords: carbon steel, corrosion, inhibitor, nitric acid, tannin

scholarly journals Unused Augmentin Drug as save corrosion inhibitor for α-brass in Nitric acid solution

2016 ◽  
Vol 57 (2) ◽  
pp. 326-338 ◽  
Author(s):  
Aziz Fouda ◽  
Salah Rashwan ◽  
Abd El-Aal ◽  
Naglaa Ramadan
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Corrosion Inhibitor ◽  
Nitric Acid Solution

Peptidic compound as corrosion inhibitor for brass in nitric acid solution

2004 ◽  
Vol 50 (2) ◽  
pp. 144-147 ◽  
Author(s):  
Y Abed ◽  
M Kissi ◽  
B Hammouti ◽  
M Taleb ◽  
S Kertit
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Corrosion Inhibitor ◽  
Nitric Acid Solution

scholarly journals Novel pyrimidine-bichalcophene derivatives as corrosion inhibitors for copper in 1 M nitric acid solution

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25314-25333
Author(s):  
Mai A. Khaled ◽  
Mohamed A. Ismail ◽  
Ahmed. A. El-Hossiany ◽  
Abd El-Aziz S. Fouda
Keyword(s):  
Weight Loss ◽  
Electrochemical Impedance Spectroscopy ◽  
Nitric Acid ◽  
Impedance Spectroscopy ◽  
Acid Solution ◽  
Nitric Acid Solution ◽  
Potentiodynamic Polarization ◽  
Corrosion Inhibitors ◽  
Electrochemical Impedance ◽  
Pyrimidine Derivatives

This study targets the investigation of three pyrimidine derivatives (MA-1230, MA-1231, MA-1232) for the prevention of corrosion on copper in 1 M HNO3via weight loss (WL), potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS) techniques.

scholarly journals The effect of crystal textures on the anodic oxidization of zirconium in a boiling nitric acid solution

2015 ◽  
Vol 53 (9) ◽  
pp. 1371-1379 ◽  
Author(s):  
Chiaki Kato ◽  
Yasuhiro Ishijima ◽  
Fumiyoshi Ueno ◽  
Masahiro Yamamoto
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Nitric Acid Solution

Influence of Corona Discharge on CaSO4 Solubility of Silicone Rubber Insulator Surface

2021 ◽  
Vol 69 (1) ◽  
pp. 74-79
Author(s):  
Sihua Wang ◽  
Junjun Wang ◽  
Chen Long ◽  
Zhao Lei
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Corona Discharge ◽  
Nitric Acid Solution ◽  
Silicone Rubber ◽  
Calcium Sulfate ◽  
Salt Composition ◽  
Surface Product ◽  
Two Temperatures ◽  
Discharge Test

Some studies have shown that the operating state of silicone rubber insulators is not only affected by surface corona discharge, but also different due to the surface covered with different pollutants, but few studies have linked the two. In this paper, by designing the corona discharge test of silicone rubber insulator, the output of nitric acid from its surface product was calculated, and the concentration of nitric acid under different air humidity was obtained. The solubility test of slightly dissolved salt calcium sulfate in nitric acid solution at 293.15K and 333.15K was designed to obtain the solubility of calcium sulfate at different concentrations of nitric acid at two temperatures. Finally, a quantitative analysis of the solubility of calcium sulfate on the surface of insulator FXBW-10/70 in nitric acid solution shows that the surface contamination of insulator with good hydrophobicity may be completely dissolved by nitric acid solution, but the surface of insulator with loss of hydrophobicity cannot be completely dissolved by nitric acid. This study provides a theoretical basis for the dissolution characteristics of silicon rubber insulator corona discharge on its surface soluble salt composition and provides a new idea for the influence of insulator corona discharge on its electrical properties.

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