scholarly journals Influence of Angle of the Line of Magnetic Force on the Dissolution of Copper, Zinc and Brass in Nitric Acid Solution

1988 ◽  
Vol 37 (10) ◽  
pp. 595-600 ◽  
Author(s):  
Atsushi Chiba ◽  
Tadahiko Ogawa
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

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.


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

2021 ◽  
Vol 69 (1) ◽  
pp. 74-79
Author(s):  
Sihua Wang ◽  
Junjun Wang ◽  
Chen Long ◽  
Zhao Lei

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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