A study on the inhibition of mild steel corrosion in hydrochloric acid by pyridoxol hydrochloride
Article Sidebar
Main Article Content
Abstract
by Pyridoxol hydrochloride (PXO) has been studied using weight loss and hydrogen
evolution techniques. The inhibitor (PXO) exhibited highest inhibition efficiency of
71.93% at the highest inhibitor concentration of 1.0 x 10 -2 M investigated and a
temperature of 303K from weight loss result. Also, inhibition was found to increase with
increasing concentration of the inhibitor and decreasing temperature. A first order type
of mechanism has been deduced from the kinetic treatment of the weight loss results and
the process of inhibition attributed to physical adsorption. The results obtained from the
two techniques show that pyridoxol hydrochloride could serve as an effective inhibitor
of the corrosion of mild steel in HCl acid solution. The compound obeys the Langmuir
adsorption isotherm equation.
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
The corresponding author transfers the copyright of the submitted manuscript and all its versions to Eclet. Quim., after having the consent of all authors, which ceases if the manuscript is rejected or withdrawn during the review process.
When a published manuscript in EQJ is also published in other journal, it will be immediately withdrawn from EQ and the authors informed of the Editor decision.
Self-archive to institutional, thematic repositories or personal webpage is permitted just after publication. The articles published by Eclet. Quim. are licensed under the Creative Commons Attribution 4.0 International License.
References
(1) K.R. Tretchewey, J. Chamberlain, Corrosion
for Science and Engineering, 1 st edition,
Longman, United Kingdom, 1995, 31 – 40.
(2)
B. I. Ita, O. E. Offiong, Inhibition of mild
steel corrosion in hydrochloric acid by 2 –
Ammopyridine and 2 – (Aminomethly) pyridine,
Global J. Pure and Appl. Sci. 6, (1) (2000) 51 –
(3)
B. I. Ita, O. E. Offiong, The inhibition of
mild steel corrosion in hydrochloric acid by 2, 2’
pyridil and a - pyridoin, Mater. Chem. Phys. 51,
(1997) 203 – 210.
(4) O. K. Abiola, N. C. Oforka, E. E. Ebenso, A
potential corrosion inhibition for acid corrosion
of mild steel, Electrochemistry 20, (9) (2004)
– 413.
(5) R.B. Rastoyi, M. M. Singh, K. Singh,
M.Yadav,
Organolic
Dithiohydrazodicarbonamides as corrosion
inhibitors for mild steel-dimethyl sulphoxide
containing HCl, Portugaliae Electrochimica Acta,
, (2005) 315 - 332.
(6) A. O. James, N. C. Oforka, O. K. Abiola,
Inhibition of corrosion of aluminium in hydrochloric acid by Pyridoxal hydrochloride, J.
Corr. Sci. Eng. 7, Preprint 21, (2005) 1 – 10.
(7) B. I. Ita, O. E. Offiong, Inhibition of steel
corrosion in hydrochloric acid by pyridoxal, 4 –
methyl thiosemicarbazide, pyrdoxal – (4 –
methylthiosemicarbazone) and its Zn(11)
complex, Mater. Chem. Phys. 48, (1997) 164 –
(8) A. O. James, N. C. Oforka, O. K. Abiola,
Inhibition aluminium 3SR corrosion in
hydrochloric acid by Pyridoxal hydrochloride,
Bulletin of electrochemistry, 22, (3) (2006) 111 –
(9) A.I. Onuchukwu, The kinetic and mechanism
of hydrogen evolution on corroding aluminium
in alkaline medium, Mater. Chem.Phys. 25,
(1998) 227 – 235.
(10) I. P. C. Okafor, E. E.Ebenso, U. J. Ekpe,
Inhibition of the acid corrosion of aluminum by
some derivatives of thiosemicarbazone, Bull.
Chem. Soc. Ethiopia, 18, (12) (2004) 181 – 192.
(11) B. I. Ita, A study of Corrosion inhibition of
mild steel in 0.1 M hydrochloric acid by O-
Vanillin and O-vanillin hydrazone, Bulletin of
Electrochemistry, 20, (8) (2004) 363 – 370.
(12) K. O. Orubite, N. C. Oforka, Inhibition of
the corrosion of mild steel in hydrochloric acid
solutions by the extracts of leaves of Nypa
fruiticans Wurmb, Mat. Let. 58, (2004) 1768 –