INIFTA 05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Nuevos inhibidores de la corrosión de acero en H2SO4 0,5M
Autor/es:
M.J. BANERA.; J.P. JIMÉNEZ M; J.A. CARAM; M.V. MIRÍFICO
Lugar:
Concepcion
Reunión:
Congreso; CONAMET/SAM 2015. 15º Congreso Internacional de Metalurgia y Materiales; 2015
Institución organizadora:
Universidad de Concepción
Resumen:
The behavior as corrosion inhibitors of two S,N-bicyclical compounds:3a,6a-diphenyltetrahydro-1H-imidazo [4,5-c] [1,2,5] thiadiazole-5 (3H)-thione2,2-dioxide and 4-ethyl-3a,6a-diphenyltetrahydro-1H-imidazo [4,5-c] [1,2,5]thiadiazole-5 (3H)-thione 2,2-dioxide, was studied for SAE 1010 steel in 0,5 M H2SO4at 30 °C. The research was carried out using different techniques (gravimetric,electrochemical and spectroscopic). Both compounds reduce the corrosion rateeven at very low concentrations. Inhibition efficiency (IE) increases withincreasing concentration of compounds. The IE is 92-94% for the maximuminhibitor concentration studied (120 µM). Both compounds act as mixed corrosioninhibitors, affecting anodic and cathodic reactions of the corrosion process
