Corrosion inhibition through decreasing the rate of mass transfer by drag-reducing agents

The effect of the addition of polyethylene oxide (Polyox) on the rate of copper dissolution from a turbulently rotating cylinder in orthophosphoric acid was determined by measuring the limiting current and the mass transfer coefficient within the range 240 < Re < 3400. Polymer additions were f...

Full description

Saved in:
Bibliographic Details
Published in:Corrosion science 1977, Vol.17 (11), p.865-869
Main Authors: Sedahmed, G.H., Abd El-Naby, B.A., Abdel-Khali, A.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of the addition of polyethylene oxide (Polyox) on the rate of copper dissolution from a turbulently rotating cylinder in orthophosphoric acid was determined by measuring the limiting current and the mass transfer coefficient within the range 240 < Re < 3400. Polymer additions were found to decrease the mass transfer coefficient up to a maximum of 40%; the percentage decrease in the mass transfer coefficient was found to be insensitive to Reynold's number but to depend mainly on the polymer concentration. Mass transfer data in solutions containing the polymers were found to fit the correlation: J = 0.071 Re −0.3( μ μ 0 −0.68 .
ISSN:0010-938X
1879-0496
DOI:10.1016/0010-938X(77)90092-0