Producción Científica Profesorado

Thermodynamic study of Iridium in HCl: The effect of concentration



Veloz Rodríguez, María Aurora

2014

Sixto Sael Serrano Lópeza, Víctor Esteban Reyes Cruz, Clara Hilda Ríos-Reyes.María Aurora Veloz Rodríguez. (2014). Thermodynamic study of Iridium in HCl: The effect of concentration. Advanced Materials Research, Vol. 976 (2014) pp 179-183. doi:10.4028/www.scientific.net/AMR.976.179


Abstract


In this work, the dissolution of iridium was studied through a thermodynamic theoretic study withdifferent concentrations of hydrochloric acid (HCl) and Iridium (Ir). Three different acid conditionsand three different concentrations of iridium were analyzed: 1, 0.1 and 0.01 M HCl and 0.86, 0.021 and 0.002 M of iridium. The system 1 M HCl was the only one that presented soluble species of Ir.Results showed that as the Ir concentration diminished from 0.86 to 0.002 M, the pH range where it is possible to obtain Ir soluble species, increased (from 0-1.2 to 0-2). The presence of two Ir species (valences III and IV) for 0.021M and 0.002 M Ir concentrations was determined from the Pourbaix diagrams; while for the 0.086 M concentration, only the Ir (IV) species was observed. The Pourbaix diagrams showed that it is possible to obtain the species iridium (IV) from a potential range of 0.823 V vs SHE to 1.422 V vs SHE and at a pH between 0 and 1.2 in the 1 M HC1 solution.



Producto de Investigación UAEH




Artículos relacionados

Caracterización electroquímica de membranas líquidas soportadas para la extracción de Gd (III)

Corrosion behavior of carbon steel in sour waste water varying pH

Diagramas de Pourbaix y el efecto de la actividad, para sistemas M+H2O.

Evaluación de la resistencia a la corrosión de aceros Pulvimetalurgicos inoxidables austéniticos sin...

Estudio voltamperométrico de la hemozoina y b-hemozoina en presencia de quinina y amodiaquina

Electrorecuperación de metales del grupo del platino de convertidores catalíticos automotrices

Caracterización electroquímica de suelos contaminados por residuos mineros (jales).

Evaluación de a-Diiminas como inhibidores de corrosión: efecto de la ruta de síntesis

Evaluación de la resistencia a la corrosión de aceros Pulvimetalurgicos inoxidables austéniticos sin...

Electrorecuperación de Ag+ sobre Ti en un reactor electroquímico filtro prensa (ER01-FP)