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

Recuperación selectiva de DORE (Au-Ag) de disoluciones provenientes de la lixiviación de minerales, ...

Caracterización electroquímica de los jales históricos del distrito minero de Zimapán

Recuperación de plata proveniente de placas radiográficas utilizando un reactor electroquímico tipo ...

Galvanic interactions between galenasphalerite and their reactivity

Galvanic interactions between galenasphalerite and their reactivity

Electrorecuperación de Ag proveniente de efluentes radiográficos sobre A304 a diferentes potenciales...

Estudio electroquímico de la influencia del cobre en la recuperación de plata sobre un sustratos de ...

Electro-recovery of gold and silver from a cyanide leaching solution using a three-dimensional react...

Corrosión de acero SAE 1018 en aguas amargas colectadas de la industria del petróleo: efecto de la t...

Mecanosíntesis y caracterización química de moléculas quirales de tipo imina como potenciales inhibi...