Electro-dissolution of nichrome in hydrochloric acid

Chakravorty, M and Paramguru, R K and Sircar, J K and Jena, P K (1997) Electro-dissolution of nichrome in hydrochloric acid. Bulletin of Electrochemistry, 13 (6). pp. 269-274.

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Potentiostatic data are reported for cathodic polarisation of nichrome at room temperature ill HCl and mixture of HCl-NaCl. The applied current density (i(app)) at fixed overpotential, is proportional to hydrogen ion concentration in simple HCl and chloride ion concentration ill the mixture of HCl-NaCl where HCl concentration is kept constant at 1.0 N. In the mixture of tow concentration of HCl (0.04 N to 0.22 Nf and high concentration of NaCl (1.0 N to 3.0 N), the current density is found to be independent of both the concentrations, Langmuirs adsorption isotherm has been used to establish the mechanism of the process, The anodic polarisation studies were carried out in HCl upto 1.0 N. The critical current density is found to increase with increase in chloride ion concentration.

Item Type:Article
Official URL/DOI:http://www.nmlindia.org
Uncontrolled Keywords:potentiostatic; anodic and cathodic polarisation; Langmuirs adsorption isotherm
Divisions:Analytical Chemistry
ID Code:1072
Deposited By:Sahu A K
Deposited On:17 Jun 2010 09:42
Last Modified:14 Dec 2011 11:17
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