A COMBINED EXPERIMENTAL AND THEORETICAL INVESTIGATION ON PYRAZOLONE DERIVATIVE AS CORROSION INHIBITOR FOR MILD STEEL IN 0.5 M SULPHURIC ACID MEDIA

Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/2023

Title:	A COMBINED EXPERIMENTAL AND THEORETICAL INVESTIGATION ON PYRAZOLONE DERIVATIVE AS CORROSION INHIBITOR FOR MILD STEEL IN 0.5 M SULPHURIC ACID MEDIA
Authors:	Nalini D Kohilah K S Ramkumar, Sowmya
Keywords:	acid corrosion mild steel pyrazolone theoretical studies sulphuric acid medium
Issue Date:	23-Apr-2014
Publisher:	Sociedade Portuguesa de Electroquímicals, PortugaliaeElectrochimicaActa
Abstract:	The inhibition action of the Pyrazolone Derivative (PYR) on the corrosion of mild steel in 0.5 M sulphuric acid was investigated by weight loss, polarization, impedance and SEM. Results obtained revealed that PYR performed excellently as corrosion inhibitor with efficiency of 91% at 11 ppm at 298 K. Its adsorption on mild steel obeys Langmuir and Temkin isotherm. Polarization curves indicate that PYR behaves as mixed type. The value of ΔG°ads indicates the spontaneous physisorption of PYR. The SEM results confirm the presence of a protective surface layer over the mild steel surface. The reactivity of the compound was analysed through theoretical calculation.
URI:	http://dx.doi.org/10.4152/pea.201402109 http://localhost:8080/xmlui/handle/123456789/2023
ISSN:	0872-1904
Appears in Collections:	International Journals

Files in This Item:

File	Description	Size	Format
A COMBINED EXPERIMENTAL AND THEORETICAL INVESTIGATION ON PYRAZOLONE DERIVATIVE AS CORROSION INHIBITOR FOR MILD STEEL IN 0.5 M SULP.docx		10.39 kB	Microsoft Word XML	View/Open