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Journal of Applied Electrochemistry

, Volume 6, Issue 4, pp 353–360 | Cite as

The active dissolution of tin in acidic chloride electrolyte solutions — a rotating disc study

  • B. N. Stirrup
  • N. A. Hampson
Article

Abstract

The anodic dissolution of tin in acidic chloride electrolyte has been investigated using the rotating disc technique. The dissolution reaction has a Tafel slope of 64 ±5 mV dec−1 after the effects of diffusion are eliminated. The order of reaction with respect to Cl ion has been found to be unity. The measured currents were also found to depend onCH+. The suggested mechanism involves quasi-reversible charge transfer.

A possible explanation is given for the observed current-time behaviour at low anodic current densities.

Keywords

Chloride Physical Chemistry Charge Transfer Electrolyte Solution Measured Current 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notation

i

Current density

i(∞)

Current density at infinite rotation speed

id,Cl

Limiting current density due to Cl diffusion

Ccl

Concentration of chloride ion

CH+

Concentration of hydrogen ion

d0

Diffusion coefficient of oxidised species

kb

Rate constant for reduction of oxidised species

ν

Kinematic viscosity

ω

Angular velocity

α

Anodic transfer coefficient

\(\underrightarrow k\)

Rate constant at standard equilibrium potential

Direction of reaction

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Copyright information

© Chapman and Hall Ltd 1976

Authors and Affiliations

  • B. N. Stirrup
    • 1
  • N. A. Hampson
    • 1
  1. 1.Department of ChemistryLoughborough University of TechnologyLoughborough

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