Inhibition of corrosion of aluminium in hydrochloric acid by cobalt tetrasulphophthalocyanine

Inhibition of corrosion of aluminium in hydrochloric acid by cobalt tetrasulphophthalocyanine

Inhibition of corrosion of aluminium in 2M HCl by cobalt tetrasulphophthalocyanine (CoTSP) has been investigated by gasometry, thermometry, weight loss and polarization techniques. The test Al strips were Indal 2S, of composition Al-0.5Fe-0.3Si-0.02Ga-0.01Ti. Inhibitive property is exhibited in conc...

Full description

Saved in:
Bibliographic Details
Published in:Indian journal of chemical technology Vol. 2; no. 2; pp. 99 - 103
Main Authors: PILLAI, V. N. S, THOMAS, J, HARIKUMAR, P. S
Format: Journal Article
Language:English
Published: New Delhi Council of Scientific & Industrial Research 01-03-1995
Subjects:
Applied sciences
Corrosion
Corrosion prevention
Exact sciences and technology
Metals. Metallurgy
Hydrochloric acid
Acid corrosion
Corrosion inhibitors
Aluminum
Concentration effect
Corrosion protection
Activation energy
Organic compounds
Macrocycle
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Inhibition of corrosion of aluminium in 2M HCl by cobalt tetrasulphophthalocyanine (CoTSP) has been investigated by gasometry, thermometry, weight loss and polarization techniques. The test Al strips were Indal 2S, of composition Al-0.5Fe-0.3Si-0.02Ga-0.01Ti. Inhibitive property is exhibited in concentrations as low as 10 exp -7 M but reaches its maximum in concentrations exceeding 2x10 exp -4 M. The activation energy of the dissolution process is found to increase with increasing inhibitor concentration and Arrhenius activation energies show that the inhibition process is activation controlled.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0971-457X