LKP model of the inhibition mechanism of thiourea compounds

Journal Article · Mon Dec 01 04:00:00 EST 1997 · Corrosion

DOI:https://doi.org/10.5006/1.3290275· OSTI ID:619563

Lukovits, I; Palfi, K; Bako, I; Kalman, E ^[1]

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1. Hungarian Academy of Sciences, Budapest (Hungary). Central Research Inst. for Chemistry

Interaction of corrosion inhibitors with metal surfaces in acidic solutions was investigated using a nonlinear model encompassing the Langmuir adsorption isotherm. A regression equation, with a multiple correlation coefficient equal to 0.95, was derived between the efficiencies of corrosion inhibition and molecular descriptors. The objective of the present work was to extend the proposed model for empirical substituent constants and quantum chemical indices. A highly significant multiple correlation coefficient (R = 0.95) has been demonstrated between experimental and predicted efficiencies using the proposed model. Thiourea and its derivatives were used because they are nontoxic compounds, and their use as corrosion inhibitors will not cause any environmental hazard.

• Sponsoring Organization: USDOE
• OSTI ID: 619563
• Journal Information: Corrosion, Journal Name: Corrosion Journal Issue: 12 Vol. 53; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADSORPTION ISOTHERMS
CORROSION INHIBITORS
MATHEMATICAL MODELS
METALS
THIOUREA