EFFECTS OF ORGANIC RESINS AND PLANT EXTRACTS ON CORROSION RATE OF MEDIUM CARBON STEEL IN TETRAOXOSULPHATE VI ACID MEDIUM

Simple item page
dc.contributor.authorAuwal, KASIM B.
dc.date.accessioned2014-02-24T10:33:04Z
dc.date.available2014-02-24T10:33:04Z
dc.date.issued2007-08
dc.descriptionAN M.Sc THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL , AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA IN PARTIAL FULFILMENT FOR THE AWARD OF MASTERS OF SCIENCE DEGREE IN METALLURGICAL ENGINEERING DEPARTMENT OF METALLURGICAL ENGINEERING AHMADU BELLO UNIVERSITY, ZARIA. NIGERIAen_US
dc.description.abstractThe effects of organic resins (Methylene blue and Neutral red) and plant extracts (piliostigma thonningii and Gmelina arborea) on corrosion rate of medium carbon steel in 0.2M H2SO4 acid pickling solution were studied with a view to comparing them with a known standard inhibitor (Sodium Benzoate). Gravimetric and Gasometric measurements were carried out at different inhibitor concentration and Temperature ranges of 0.05 – 0.5% and 30 – 600C respectively. Results obtained revealed that all the four compounds tested acted as mixed-type inhibitors, reducing the dissolution of iron and retarding H2 evolution, comparing favourably with the standard inhibitor at all inhibitor concentrations and temperatures studied. The maximum inhibition efficiencies of the compounds tested were obtained at 300C and increased progressively in order of: Neutral red (83.29%), Methylene blue (90.96%), Sodium Benzoate (91.50%), Gmelina arborea (96.98%) and Piliostigma thonningii (97.94%). The mechanism of inhibition was elucidated by Kinetic and thermodynamic models. It was concluded that the adsorption of the compounds onto the steel surface, which obeyed the Langmuir and Temkin adsorption isotherms, is the main mechanism of inhibition by these compounds.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/2390
dc.language.isoenen_US
dc.subjectEFFECTS,en_US
dc.subjectORGANIC,en_US
dc.subjectRESINS,en_US
dc.subjectPLANT,en_US
dc.subjectEXTRACTS,en_US
dc.subjectCORROSION,en_US
dc.subjectRATE,en_US
dc.subjectMEDIUM,en_US
dc.subjectCARBON,en_US
dc.subjectSTEEL,en_US
dc.subjectTETRAOXOSULPHATE VI,en_US
dc.subjectACID MEDIUMen_US
dc.titleEFFECTS OF ORGANIC RESINS AND PLANT EXTRACTS ON CORROSION RATE OF MEDIUM CARBON STEEL IN TETRAOXOSULPHATE VI ACID MEDIUMen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
EFFECTS OF ORGANIC RESINS AND PLANT EXTRACTS ON CORROSION RATE OF MEDIUM CARBON STEEL IN TETRAOXOSULPHATE VI ACID MEDIUM.pdf
Size:
3.56 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.58 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
ENGINEERING